When copying category names from the parent category name, it is often happened that an unvisible character (maybe Left-to-right mark or Ctrl-Z).
- https://commons.wikimedia.org/wiki/MediaWiki_talk:Gadget-Cat-a-lot.js#Invisible_characters_in_Category_names
- https://commons.wikimedia.org/wiki/MediaWiki_talk:Gadget-Cat-a-lot.js#Any_idea_why_...
- https://commons.wikimedia.org/wiki/Commons:Bots/Work_requests#Unvisible_controll_characters_in_category_tags
The cleaning is requested at https://commons.wikimedia.org/wiki/Commons:Bots/Requests/YiFeiBot_(11) but also the Cat-a-lot should be repaired to be able to remove or move all pages from the category.
Version: unspecified
Severity: normal