As said in the issue title, when clone url is set at edit time, it has no effects.
Marcin Kuzminskirepo owner
it's planned like that. You can always trigger pull action when you set the remote url. It makes sense to clone automatically when you create repo, but when you edit it's better IMHO to pull manually.
you create a fork of some external repo, later you decide that you would like to keep it in sync via RhodeCode, then you put remote clone url, and let it sync via crontab calls for example