Noticed this glitch when my guildie invited me to a warparty and I received the Warplot Recall ability.
1. Create a Warparty or get invited to a warparty.
2. You now have the Warplot Recall ability in the dropup menu where the other recall abilities are located.
3. Open up the neighbors window and press the button in the bottom left corner to return to your house.
4. You now have an extra housing cooldown on a 15 min cooldown!
Not that extraordinary but not intended for sure. Thanks for reading.