fmpy.simulation.simulate_fmu tries to sample Input values

[nl78]

simulation._get_output_variables() defaults to return input variables. In this case, Recorder tries to sample input variable.
Some FMU don't support getting value for port with causality "input". (example: ls-bus-examples/bus.fmu).

[t-sommer]

This seems to be a bug in the FMU.

[nl78]

I agree. Regarding the FMU which does not allow "fmiGet" on input, an issue is opened: modelica/fmi-ls-bus-examples#5

Any way should simulation._get_output_variables() return input variables ?