This is a weird one...tags in nepomuk multiply themselves. Or rather: some tags do.

It's kinda hard to explain but if I start with a clean nepomuk database (iow, do a rm -rf ~/.kde4/share/apps/nepomuk before logging in to KDE) the nepomuk database contain 5 tags: Business, Family, Friend, Linguistics, and School. I assume nepomuk get those from akonadi but can't recall ever having tagged anything with "Linguistics" even though it's possible (the rest may be default tags).

Well, so far so good. I can also create new tags myself from within Dolphin and search for files with those tags.

However, it is only a matter of time before I get several entries with the same tag in the "Add tag" dialog - like say four "Friends", 3 "Family", and 2 "Business". But ONLY tags that come from akonadi (if that's where they come from). The ones I've created myself never exhibits this behavior.

It's starting to get really annoying, and I really wish I knew where to look for the problem.

Anyone with any bright ideas?

This is likely a bug in the Akonadi tagging backend, and likely explains why they fail to delete tags from items also. Please file a bug report at bugs.kde.org.

Done.

https://bugs.kde.org/show_bug.cgi?id=231894