Please describe the problem:
Select multiple emails for deletion where there are both older and newer
emails around the selection.  Delete the emails.  Note that instead of
just moving to the next newest email, the 'cursor' moves down multiple
emails ( i've not actually done a count so this may be wrong, but it
looks like the cursor may be jumping down n emails where n is the number
of emails just deleted)

I did some testing, and it does appear that for me, the next selected
email is N down the tree where N is the number of selected emails
deleted.

Steps to reproduce:
1. See description
2. 
3. 


Actual results:
See description

Expected results:
Next email in list is selected, rather than N down email selected

Does this happen every time?
pretty much

Other information:
building from svn head