Last modified: 2014-01-14 23:26:47 UTC
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.
Thanks for taking the time to report this! That's very likely a problem with the gadget in question, not with MediaWiki software. So I'm closing this bug report as INVALID, as this problem is not about server configuration or code in the MediaWiki codebase, but about local scripts on a specific Wikipedia that anybody could fix on-wiki. Please refer to https://commons.wikimedia.org/wiki/MediaWiki_talk:Gadget-Cat-a-lot.js
Related bug about the problem of MediaWiki: Bug 60059