go get for modules in subdirs broken since 1.14.x

[42wim]

• Gitea version (or commit ref): 1.14.1
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
• Log gist:

Description

Running go get on modules where the go.mod is in a subdir instead of the root eg http://gitea/owner/repo/subdir?go-get=1 will now always return a 404 which makes go get fail.

On gitea 1.13 a 200 OK was returned