RTC 6.0.6.1 "Development Mode"
Accepted answer
Morten,
I am pretty sure the answer is as follows:
As the name internal indicates, the flag is an internal capability that is not a customer feature. Hence it does not require to be documented. Support would provide the explanation if they ask you to use this capability.
I do not know what it means. I was only aware of ?internal=true as URI parameter that I use to request a reprovisioning (server reset) for server extension development.