Editing a comment that ends with a mention in Firefox does not work

[artonge]

Editing a comment that ends with a mention in Firefox does not work:

• Use Firefox
• Send a new comment which is just a mention (like @user0)
• Edit that comment
• The cursor does not appear, and typing is not reflected in the comment. On the other hand, if the message was hello @user0 it is possible to place the cursor at the beginning with the mouse and type there, but not at the end.

Originally posted by @danxuliu in #35187 (review)

[szaimen]

Hi, please update to 24.0.9 or better 25.0.3 and report back if it fixes the issue. Thank you!

My goal is to add a label like e.g. 25-feedback to this ticket of an up-to-date major Nextcloud version where the bug could be reproduced. However this is not going to work without your help. So thanks for all your effort!

If you don't manage to reproduce the issue in time and the issue gets closed but you can reproduce the issue afterwards, feel free to create a new bug report with up-to-date information by following this link: https://github.com/nextcloud/server/issues/new?assignees=&labels=bug%2C0.+Needs+triage&template=BUG_REPORT.yml&title=%5BBug%5D%3A+

[XueSheng-GIT]

I'm on 25.0.3 and can reproduce this issue!

[edward-ly]

Can still reproduce this in latest master branch, although I believe this is an issue with the NcRichContenteditable component itself rather than an issue with the comments app.