Last modified: 2010-05-15 15:56:54 UTC
As of 1.6.5 bug 5709 is resolved, but not completely.
Now i get '<catseparator>' between category names under an article/image.
I believe it appears in all 1.6.5 installations.
Works fine here. Most likely you didn't update the files in the languages
subdirectory. You must update *all* files in the wiki.