message: fix npc to mobsi interaction
diff: @@ -709,9 +709,11 @@ bool Interactive::dettach(Npc &npc, bool quick) {
  i.attachMode = false;
  return true;
  }
  + return false;
  }
  }
  - return true;
  +
  + return npc.interactive()==nullptr;
  }
  bool Interactive::isAttached(const Npc& to) {
  