Please fill in this template when reporting a bug, unless you know what you
are doing.
Description of Problem:
Deleted but unpurged messages can be undeleted by selecting them and
hitting Ctrl-U. However if deleted messages are usually hidden they must
first be unhidden. Also, after deleting a bunch of messages in arbitrary
order it can be hard to identify which was the last one deleted by mistake.
It would be useful to have a delete stack as is done in most modern editors
and many other mailers, plus a command to undelete the top of the stack.
The obvious accelerator would be Ctrl-Z.

For extra credit: make it work for move and copy as well.


Steps to reproduce the problem:
1. Delete a few messages in random order.
2. Decide you didn't want to delete the last two.
3. Try to figure out which were the last two.

Actual Results:
User inconvenience.

Expected Results:
Easy undeletion.

How often does this happen? 
Always.

Additional Information: