stan() saves output.csv in working_dir but anon_model.exe, .hpp and .stan in present working directory

[geniki]

I would have hoped that the .exe, .hpp and .stan files would also be saved in working_dir, not in the Matlab pwd. I use Windows and MatlabStan-2.6.0.0.

I am running with these settings, if it matters:
fit = stan('model_code', mcode ,'method','optimize', 'verbose', false, 'file_overwrite', true, 'working_dir', 'C:');

Thanks