binarycat reported a UX issue with the “in this topic” search mode, which disappears prematurely when typing a single character and then deleting it. ondrej and Moin confirmed experiencing the same behavior, with Moin noting it also occurs in the personal message inbox.
sam acknowledged the issue as a UX glitch and flagged it for the member experience team to review. zogstrip thanked binarycat for reporting the problem and provided a link to a GitHub pull request that addresses the issue:
This fix aims to resolve the premature disappearance of the “in this topic” search mode, improving the user experience when searching within specific topics or message inboxes.
I get this behaviour too. I don’t use this type of search often I usually search for topics so I’m not sure what is meant to happen. But logically, it would make sense for the search to stay until you want to get rid of it.