Steps to replicate the issue (include links if applicable):
- Go to [https://en.wikipedia.org/wiki/Wikipedia:Featured_article_candidates/Endometriosis/archive1]. This also works in safemode, but does not seem to happen on other pages, such as my user talk page or the administrator's noticeboard.
- Click "Reply" after any comment to open the Reply Tool.
- Type any text.
What happens?:
There are two square brackets after the user signature in the preview.
What should have happened instead?:
The square brackets should not be there.
Other information (browser name/version, screenshots, etc.):
Happened in multiple browsers.
Possibly related to the Codex deployment? Possibly related to something on that page itself?