If you use [Tab] and then [Space] in the main menu to select "Singleplayer", you open the singleplayer screen as expected, but with a single space in the search bar, so you don't see all your worlds.
Steps to reproduce
Start Minecraft Java in Version 26.1.2 or Snapshot 26.2-pre-1. (both have this issue)
Press the Tabulator key on your keyboard and release it so that the button “Singleplayer” has a white border instead of a black one. (You can also use the arrow keys)
Presse the Space key and release it.
Observed Behavior
You are now on the Singleplayer Screen, but all worlds which don’t have a Space in their name are hidden, because a single white space is in the search bar.
Expected Behavior
There should be no whitespace in the search bar, and therefore all worlds should be visible.
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We're tracking this issue in MC-233888, so this ticket is being resolved and linked as a Duplicate.
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