close_at always null for API: repos/{owner}/{repo}/pulls API

[dfelinto]

Description

The field "close_at" is always NULL for pull requests API queries.

You can see the error here:
https://try.gitea.io/api/v1/repos/dfelinto/blender/pulls

It doesn't matter if the pull request was closed manually (id=13601) or merged (id=13600).

Gitea Version

1.19.0+dev-310-g1aba53db6

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

I can reproduce this both with try.gitea.io and a local instance running 1.18.0 from the binary.

Database

SQLite

[dfelinto]

I just realized that if I query for the issues of type pulls instead I get the closed_at:
https://try.gitea.io/api/v1/repos/dfelinto/blender/issues?state=all&type=pulls

I will be using the issues query instead. It also has a better cursor/pagination with the 'since' field. So this bug doesn't bother me anymore.