Hello. I can verify the problem and that the commit in http://dev.mutt.org/hg/mutt/rev/755a18da99bc restores performance from abysmal to usable.
When checking my inbox, mutt does a clone() over 200000 times, which seems a bit excessive. Please include this in an update for jessie, since body searches are no longer usable in the current state with no easy method to abort (apart from ^Z and kill %1). /Tomas -- Tomas Forsman, st...@cs.umu.se, http://www.cs.umu.se/~stric/ `- SysAdmin at Computing Science, University of UmeƄ