Re-editing issue should open "Write", not "Preview"

[FWDekker]

Gitea Version

1.15.9

Operating System

FreeBSD 13

Browser Version

Firefox 96.0.3

Can you reproduce the bug on the Gitea demo site?

No
(I was unable to create an account at try.gitea.io.)

Description

If a user edits an issue, then previews, then saves/cancels, and then edits again, the editor will start at "Preview" instead of "Write".

I think it would make more sense to forcefully jump to the "Write" tab when a user edits the contents of an issue.

Screenshots

Not applicable.

[wxiaoguang]

-> Switch to "edit" tab when edit comment again #31445