Will it record a new RTH though, if just landing and taking off again ?
Maybe if motors are stopped, but obviously drone can't be shut down at the remote location.
Just try it landing say 50m away, even on flat ground, as long as the signal is ok.
Try landing, taking off again, with motors running.
Try landing, CSC stop motors, leave it a minute, restart motors, take off.
Fly these options half way back to your location, and press RTH, see what happens, would be interesting.
Of course even if RTH logs a new location and it starts flying back, you can just cancel and fly manually back to your location.
Another thought . . . you could try controller power off when landed and motors stopped
Then, restart the controller, see if that reconnects ok, and then I imagine a new RTH would be recorded ?