validator warning if Public_transport =platform object is way or area in stop_area

[Gilbert]

According to ​http://wiki.openstreetmap.org/wiki/Bus_stop the platform can be a node, way or area. It is recommended to collect the stop_position, platform and optional amenities like shelter etc. in a relation "stop_area". When I use a node for the platform, it passes the Validation test. If I use a way or area for the platform, the validator will issue a warning, which In my opinion is incorrect.
The way or area type is accepted if I add the same platform to the route relation.

Test: go to 51.1774685, 5.1247629. Pick a pair stop_position/platform and create a stop_area with them. Validate => OK. Change the platform node to a way, update the stop_area relation. Validate => NOK. Change the way to an area: same problem.

[simon04]

Did you install the external public transport preset? See also #8245.

[Gilbert54]

Replying to simon04:

Did you install the external public transport preset? See also #8245.

After resetting my preferences I started again. I tried various combinations with and without the external preset. I can't reproduce it. Maybe a corrupt preference file caused this ?
I suggest to close the ticket for now. If I get the issue again, I'll first clean up the prefs file and see what happens.