Graphql price tiers returning data from previous item in foreach

[treestonemedia]

Preconditions

1. Clean Magento 2.4.2 with sample data
2. 2.4-develop

Steps to reproduce (*)

1. Install clean Magento 2.4.2 with sample data
2. Add tier pricing to any item (for this example we added tier prices to items ID 1 & 2)
3. run Graphql query with search that will include the item with tier prices and items without tier prices

{
  products(pageSize: 20, currentPage: 1, search: "24-MB0") {
    items {
      id
      price_tiers {
        quantity
        final_price {
          value
        }
      }
    }
  }
}
{code}

### Expected result (*)

1. Items with tier price return correct tier pricing, items without tier pricing return no tier prices
{code}
{{
{
    "data": {
        "products": {
            "items": <
                {
                    "id": 42,
                    "price_tiers": []
                },
				...
                {
                    "id": 17,
                    "price_tiers": []
                },
                {
                    "id": 1,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 23,
                    "price_tiers": []
                },
                {
                    "id": 19,
                    "price_tiers": []
                },
				...
            ]
        }
    }
}
}}
{code}

### Actual result (*)

1. All items coming after an item with tier pricing have tier pricing in the response
1. The tier pricing data that it's returning is from the last item in the loop that had tier pricing
1. in our example, items ID 1 & ID 2 are the only ones that have tier pricing, yet here is the result

{code}
{
    "data": {
        "products": {
            "items": [
                {
                    "id": 42,
                    "price_tiers": []
                },
                {
                    "id": 2046,
                    "price_tiers": []
                },
                {
                    "id": 11,
                    "price_tiers": []
                },
                {
                    "id": 12,
                    "price_tiers": []
                },
                {
                    "id": 6,
                    "price_tiers": []
                },
                {
                    "id": 3,
                    "price_tiers": []
                },
                {
                    "id": 41,
                    "price_tiers": []
                },
                {
                    "id": 18,
                    "price_tiers": []
                },
                {
                    "id": 39,
                    "price_tiers": []
                },
                {
                    "id": 17,
                    "price_tiers": []
                },
                {
                    "id": 1,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 23,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 19,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 8,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 13,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 15,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 16,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 22,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 43,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                },
                {
                    "id": 44,
                    "price_tiers": [
                        {
                            "quantity": 1,
                            "final_price": {
                                "value": 34
                            }
                        },
                        {
                            "quantity": 5,
                            "final_price": {
                                "value": 32
                            }
                        }
                    ]
                }
            >
        }
    }
}

1. The issue started happening since commit b2021d5#diff-8d1c1372668a97ccd40b222f73acfe4c6b5ce24ad261215306610ae8817cdc65

cc: @Usik2203

Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

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• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• [ > Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @treestonemedia. Thank you for your report.
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[treestonemedia]

@Usik2203 can you please take a look at this?

[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

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[engcom-Bravo]

Hello @treestonemedia

Thank you for your report.

We have reproduced the reported issue on the latest 2.4-develop.
After adding tier price to the products 24-MB01 and 24-MB04, the GraphQL search query returns tier prices for products that have not been changed.
Before adding tier price to products 24-MB01 and 24-MB04

{
  "data": {
    "products": {
      "items": [
        {
          "id": 43,
          "price_tiers": []
        },
        {
          "id": 2047,
          "price_tiers": []
        },
        {
          "id": 12,
          "price_tiers": []
        },
        {
          "id": 13,
          "price_tiers": []
        },
        {
          "id": 7,
          "price_tiers": []
        },
        {
          "id": 4,
          "price_tiers": []
        },
        {
          "id": 42,
          "price_tiers": []
        },
        {
          "id": 2,
          "price_tiers": []
        },
        {
          "id": 19,
          "price_tiers": []
        },
        {
          "id": 40,
          "price_tiers": []
        },
        {
          "id": 18,
          "price_tiers": []
        },
        {
          "id": 20,
          "price_tiers": []
        },
        {
          "id": 24,
          "price_tiers": []
        },
        {
          "id": 23,
          "price_tiers": []
        },
        {
          "id": 44,
          "price_tiers": []
        },
        {
          "id": 17,
          "price_tiers": []
        },
        {
          "id": 14,
          "price_tiers": []
        },
        {
          "id": 9,
          "price_tiers": []
        },
        {
          "id": 16,
          "price_tiers": []
        },
        {
          "id": 37,
          "price_tiers": []
        }
      ]
    }
  }
}

After adding tier price to products 24-MB01 and 24-MB04

{
  "data": {
    "products": {
      "items": [
        {
          "id": 43,
          "price_tiers": []
        },
        {
          "id": 2047,
          "price_tiers": []
        },
        {
          "id": 12,
          "price_tiers": []
        },
        {
          "id": 13,
          "price_tiers": []
        },
        {
          "id": 7,
          "price_tiers": []
        },
        {
          "id": 4,
          "price_tiers": []
        },
        {
          "id": 42,
          "price_tiers": []
        },
        {
          "id": 19,
          "price_tiers": []
        },
        {
          "id": 40,
          "price_tiers": []
        },
        {
          "id": 2,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 18,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 20,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 24,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 23,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 44,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 17,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 14,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 9,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 16,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        },
        {
          "id": 37,
          "price_tiers": [
            {
              "quantity": 2,
              "final_price": {
                "value": 10
              }
            }
          ]
        }
      ]
    }
  }
}