Endpoint /opener/intercom throws 500

Applying the following command on the Nuki Web API returns a 500:

curl -X GET --header 'Accept: application/json' --header 'Authorization: Bearer TOKEN' 'https://api.nuki.io/opener/intercom'

Results in:

{"code":500,"description":"The server encountered an unexpected condition which prevented it from fulfilling the request","homeRef":"/","reasonPhrase":"Internal Server Error","uri":"http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.1"}

See also Support Nuki Opener (Bridge HTTP API 1.9.0) · Issue #18 · iobroker-community-adapters/ioBroker.nuki-extended · GitHub

The endpoint /opener/brand works.

You have to provide a brand id, e.g.

curl -X GET --header 'Accept: application/json' 'https://api.nuki.io/opener/intercom?brandId=1'