[MlMt] Deleting message in window changed in rev 5412

[Florian Schulze]

Hi!

Since revision 5412 when I open a mail with double click in a new 
message window and delete it, the next mail in the mailbox is shown in 
the message window, before that revision the message window just closed. 
How can I get the old behaviour back?

Regards,
Florian Schulze