const bool old_mon_shifter = monster->has_ench(ENCH_GLOWING_SHAPESHIFTER,
                                                   ENCH_SHAPESHIFTER);

    mon_attitude_type attitude = monster->attitude;
    unsigned int foe           = monster->foe;

    mon_enchant charm          = monster->get_ench(ENCH_CHARM);
    mon_enchant neutral        = monster->get_ench(ENCH_NEUTRAL);

    // Only shapeshifters retain attitude, foe, and the charm and
    // neutral enchantments.
    if (old_mon_shifter)
    {
        monster->attitude = attitude;
        monster->foe = foe;
        monster->add_ench(charm);
        monster->add_ench(neutral);
    }