How do I reset/resync my current location?

Sometimes after rebooting my Apple Watch or my iPhone my location, in particular whether I am Home or not, gets lost and Home thinks I am Away from home when, in fact, I am actually Home.

If I get in the car and drive away and return then it seems to reset itself and knows that I am now Home.

How do I get it to reset my location as Home without having to actually leave and retrun to the geofence?