Description of problem:
If I decide to delete all email in a particular folder, I press ctrl-a and then
delete followed by ctrl e to get rid of everything. If the emails are threaded
and I do the same, some emails remain
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Ensure email is threaded, press ctrl-a, delete, ctrl-e
Most emails is deleted, but some threaded email isn't.
All email is deleted and expunged.
Seems fine in current release