shadowm@nanacore:~/src/wesnoth-1.12% git bisect good
e454252f218b88b65e3a66390e2534a6fe9969c6 is the first bad commit
commit e454252f218b88b65e3a66390e2534a6fe9969c6
Author: gfgtdf <[email protected]>
Date:   Fri Apr 18 17:37:09 2014 +0200

    fix 21933

    durign human turns, we now use check_victory which impied check_end_level, just like we du during ai turns.
    I think actions having different when invoked by ai can never be the intended behaviour.
    we also set tm->set_lost() before calling check_turn_end to that the lost_ value is also correct when ending with [endlevel]

:040000 040000 7308bfb009530b7592b815d29a6210cb9fc784c4 e4ed9e0e9ebf6bfa23552557ccbcc85270286b89 M      src