Version: 1.9.6 (using KDE 3.5.6, Kubuntu (feisty) 4:3.5.6-0ubuntu14)
Compiler: Target: i486-linux-gnu
OS: Linux (i686) release 2.6.20-16-generic
The inbox folder has 40+ emails. They are coming in from pop3 accounts. I don't have any other type of accounts. I create a new filter on a mailing list. I select all (ctrl-a) and apply filters (ctrl-j). Kontact crashes. I reopen it. In the list of emails in inbox, some emails are shown twice, but only one is ok. The duplicate has nothing inside it. Even show source shows nothing. There are also 2 emails that have nothing inside, and a strange generic title (I deleted them and I don't remember exactly, something to the effect of "no subject" / "no data"). Those nothing-inside emails, are a small percentage of the total number of emails.
Without a backtrace, I can only assume this is a duplicate of bug 135376.
*** This bug has been marked as a duplicate of 135376 ***