Markdown tasklist does not preserve checkbox state on "Edit"

[silverwind]

Description

Steps to reproduce:

1. Create issue comment with - [ ].
2. Click Edit
3. Click Cancel
4. Click the checkbox
5. Click Edit

Checkbox is incorrectly unchecked in markdown source:

Gitea Version

main

Can you reproduce the bug on the Gitea demo site?

Yes

[wxiaoguang]

IIRC the "edit" just shows the last edited content.

So if you edit in window A, cancel, edit in window B, save, then edit in window A, you still see the old content ....

They are similar problems.

[silverwind]

This is happening in the same window. Multi-Window is of course more complicated and I wouldn't expect state syncs there.

[wxiaoguang]

But they are the same problem.

When click "edit", the content should be fetched from server, instead of using local stale content.

[silverwind]

Right, that sounds like the root cause.

[silverwind]

BTW tasklist we should eventually migrate to https://github.com/github/task-lists-element, but this issue is in any case not related to tasklist specifically.