Cannot disable auto discovery for onkyo binding

I cannot disable auto discovery.

I have configured this in the configuration files:

services/runtime.cfg

discovery.onkyo:background=false

services/onkyo.cfg

org.openhab.onkyo:enableAutoDiscovery=false

But I still get this:

2019-07-28 14:31:30.530 [INFO ] [g.discovery.internal.PersistentInbox] - Added new thing 'onkyo:TX-NR626:e5b05c4d-825c-4db9-9a55-4d0982b98b32' to inbox.

The binding is working perfectly otherwise.

AFAIK Onkyo implements the UPNP discovery which is a systemwide service and can only be deactivated globally (see Hue related topic which describes it in detail).

Kodi once had a similar approach like written in the Onkyo documentation. It blocks the processing of UPNP discovery results. I changed and streamlined.

Thanks.
I will try discovery.upnp:background=false, now.