{
            if (invalid_monster_type(exc->mon))
            {
                // Bug 2887690: for some reason -O1 or -O2 with gcc
                // 4.3.2 causes exc->autoex to always be true when a
                // game is saved and then restored.  This hack fixes
                // things until we can figure out the root cause.
                mprf(MSGCH_DIAGNOSTICS, "maybe_remove_autoexclusion(): "
                     "exclusion at (%d, %d) not really an auto-exclude "
                     "[bug #2887690]; fixing",
                     exc->pos.x, exc->pos.y);
                exc->autoex = false;
                return;
            }

        }