very Very VERY BIG Problem!
I am in setting tags, applied filters here and there and did something very bad: I thought I had flagged only the filtered ones to tag them but I had flagged ALL!
So there are wrong tags for about 95 % of my collection and I'd like to know if I could undo this with just one function or if I have to restore the last backup?

Sad to say that the restore-function has no option for only restoring the Tags :-(