Fighting magic users make the game crash

The subject says it all. Haven't tried on Vanilla No mods Version 0.32.0 (Compiled source code on Debian, Jessie) To reproduce the problem, engaging combat with any magic user suffice.

(RM-1977 from redmine: created on 2014-10-05 by Alex Gil, , closed on 2015-01-06 by nobody, duplicates #1663 (closed))