Reason for locking converastion on issue cannot be reset to empty

[TheFox0x7]

Description

Locking conversation has a list of possible reasons but it does not include lack of reason. Once the reason is chosen, which the UI softly encourages, it cannot be reset to no reason, unless the page is reloaded without cache.

Screenshots

Initial menu - the UI encourages (IMO) picking the reason and blocks the actual lock button:

After picking spam as an option - there's no way to reset it to none:

Gitea Version

33df23c

Can you reproduce the bug on the Gitea demo site?

Yes

Operating System

Arch Linux

Browser Version

Mozilla Firefox 137.0

[wxiaoguang]

The legacy code reads strange ....

-> Improve "lock conversation" UI #34207