Steps to replicate the issue (include links if applicable):

• Moves a page
• In the redirect automatically created after the move, modify its content by including new categories
• These edits need to be made successively, less than 1 second apart, using a gadget

What happens?:

The page does not appear in the entered category, except if a null edit is made afterwards

What should have happened instead?:

The page should have appeared in the designated category automatically

Software version (skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):

Looking at the Portuguese Wikipedia for deletion by consensus pages created by the Fastbuttons tool in 2024, I often notice that despite the pages having the appropriate categories, they do not appear when we click on the categories themselves. This indicates that many pages are not being analyzed, agreed upon, and/or voted on. I am unsure if this is a bug or a structural issue within Mediawiki that can only be resolved through a "null edit". Nonetheless, I am documenting the situation here, having encountered at least 15 cases in the last 2 months. I am providing 4 example links with the issue, although they will disappear or be resolved as soon as someone edits the pages. See: https://w.wiki/9QpH; https://w.wiki/9QpJ; https://w.wiki/9TY8 and https://w.wiki/9QpL.