[sumo-dev] TraCI ID_LIST command return nothing for lanes

[Menno van der Woude <menno@xxxxxxxxxxxxxxxxxx>]

Hello,

currently I am expanding the API coverage of my TraCI implementation in 
C# (https://github.com/CodingConnected/CodingConnected.Traci).

On testing my implementation for, for example, data retrieval commands 
related to lanes (0xa3), I am finding that:
- get ID count (0x01) returns a number, like 68
- however, get ID list (0x00) returns nothing; TraCI acknowledges the 
request, reports it succeeded (0x00) in the acknowledgement, but there 
is no further content in the data received via tcp

I am using SUMO 0.32 for this.
The same happens with junctions, edges and vehicle types. Interestingly, 
with detectors (type 1, 2, 3) and traffic lights, retrieving the ID list 
works just fine. The implementation for these commands is identical 
between all types, using a generic method.

Any ideas?

Greets, Menno