Hello Bernd,
There is no property bag which will distinguish between the two reports.
It can only be figured out from CMC/BILaunchpad.
From SDKs perspective, try opening the report using RAS, and you would get error CRSDK00002515, reason, RAS SDKs don't support CR4E reports.
This is one way which I can think of apart from CMC/BILaunchpad. Not the ideal way, but works.
Hope it helps.
Thanks,
Prithvi
