This makes it also work during attach. Also add a test for attaching a
watchdog with incompatible action.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2187278
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
