Comment 5 for bug 1048618

Yes, much of the behavior described in bug 782899 (and especially in bug 753502, which has been tagged as a duplicate of 782899) is similar to my experience, though I never saw much of a memory spike -- only a CPU spike, and the application becoming unresponsive for up to 20 seconds or so.

That said, I did a "Repair Folder" on my Inbox, and that seems to temporarily relieve the problem, allow me to quickly select multiple messages, etc., but the effect is short-lived -- once I start re-ordering, etc., in the folder I'm back to the same problem.

Again, this problem is new with my upgrade to 15.0 today -- never had it before then.