Inconsistent order in unions between tuple values

[pushkine]

Bug Report

🕗 Version & Regression Information

ts stable & nightly

⏯ Playground Link

Playground Link

💻 Code

// The last comes first

type T1 = [1][any];             // 1
type T2 = [1, 2][any];          // 2 | 1
type T3 = [1, 2, 3][any];       // 3 | 1 | 2
type T4 = [1, 2, 3, 4][any];    // 4 | 1 | 2 | 3
type T5 = [1, 2, 3, 4, 5][any]; // 5 | 1 | 2 | 3 | 4

🙁 Actual behavior

In this snippet, a Tuple's last member always comes first in unions between its values

🙂 Expected behavior

type T2 = [1, 2, 3][any]; // 1 | 2 | 3

[MartinJohns]

Essentially a duplicate of #17944.

[typescript-bot]

This issue has been marked as a 'Duplicate' and has seen no recent activity. It has been automatically closed for house-keeping purposes.