Comment 8 for bug 291881

I'll also confirm.

Another thing to add, if you change the search folder options affecting threads, the accuracy of the count gets more incorrect each time you change it the thread options. I changed these options three times, and the count went from an inaccurate count of 16 unread 17 read to something in the 70's, growing each time.

This problem is new to me since the 8.10 upgrade.