Damn, run into the same problem.
Didn’t realize this wouldn’t work.
my workaround now:
Adding the NUKI stuff to a smarthome solution that uses the HTTP API and use a wallswitch next to the entry as an Ring-To-Open activator (Sadly my Opener isn’t reachable as in most installations).
That way I can activate RTO in the cases where I just leave a few minutes like for bringing out the trash.
But I would also love to see a solution for this.
@Nuki: Is there a technically solution in case you would see this as a feature request with enough supportes?
E.g. connecting the Fob to the bridge instead of Lock and Opener and let the bridge start the actions on both devices?