feature request #8061
Prevent user from leaving the RegistrationWorkingsetEditor when registrations are not saved yet
when working on #8039, #8059 it became obvious that it is possible to create a registration and to leave the RegistrationWorkingsetEditor before the registration has been saved. In the worst case this causes blocking registrations the be decoupled from the main registration for which it has been created, because the main registration is lost.
The same mechanism as implemented into the popup editors can probably be applied.