Thread:Project:Support desk/MW 1.23 Category pages not being linked if spaces in name but works with/reply (3)

It's not a public wiki, sorry.

Updating spaces to underscores does index the page in that category so not a cache issue as far as I can see.

Would rebuilding the index somehow address this?

What seem to come to mind would be a weird collation issue but no one seems to have encountered this before in all the googling I've done about this.