Locating address on the map with marker

I don’t know if this is a bug, or a feature? Confirmed on Guust’s site.

If you’ve typed an address into the Address field, the location marker can no longer be used to set the address because the address field never gets updated from the new marker position.

If you delete the address and then position the marker on the map it will update the address – but only once, then the address remains fixed even if the marker is moved again.

This might be intentional behaviour because it is easy to move the map around, especially when using a tablet or phone, and you wouldn’t want the address to update because a user had accidentally touched the map?

I wonder if maybe the map should be disabled if there is an address in the Address field?