For months we've had an odd situation where it will tell you that a category is not yet in use even though it exists. But I've ignored that as a cosmetic error - it still works and an incorrect warning doesn't slow you down much. But it has recently started to stop when I'm about to upload, tell me that some categories are empty and invite me to go back and complete them. I ignore this as I use the copy feature to copy my categories from the first file to the subsequent ones Maybe it doesn't notice that any more?
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=50352