Using master, reproducing is quite easy: - send an email to yourself with just one sentence "Lorem ipsum dolor sit amet" - Let the feeder add this email in the nepomuk db, - alt-f2, search "lorem ipsum", two entries are returned (the inbox and sent-mail message) - delete both, empty trash - alt-f2, "lorem ipsum" still returns two entries. the fed data are never removed from the nepomuk DB (that's also probably what causes the tag resource being unable to display the "important" tag messages)