#1931: Mutt often freezes when new messages are received in the current maildir folder Comment (by Brendan Cully <brendan@xxxxxxxxxx>): (In [7447c7f9ab8d]) Only update header color in mutt_set_flag if flag has changed (see #1216, #1931) -- Ticket URL: <http://dev.mutt.org/trac/ticket/1931#comment:5>