CODEOWNERS functionality is only triggered when opening a PR, but not after changes

[Merciful12]

Description

When a new PR is opened CODEOWNERS functionality is triggered, but afterwards changes in the PR don't trigger CODEOWNERS functionality again.

For example I have next CODEOWNERS:

file1.js @user1
file2.js @user2

If I change file1.js and open a new PR, user1 will be assigned as a reviewer. Then I change file2.js in the same branch so the PR has 2 changed files: file1.js and file2.js but CODEOWNER of file2.js (user2) is not assigned as a reviewer

Gitea Version

1.23.1

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

Not relevant

Database

None

[jpraet]

This feels quite important to fix. CODEOWNERS feature can be used for audits about PR's that touch certain files.
CODEOWNERS reviews not triggering when the file is modified after the creation of the PR definitely does not meet the user expectation.