ts_vomCost calculated wrong if multiple inputs from 2 nodes that belong to same grid
Maybe a rare case, but ts_vomCosts (3c_inputsLoop) sums commodity prices if they are grouped into 1 grid, e.g. fuels. Run attached gdx inputData-example.gdx
in debug.gdx, the ts_vomVost_ of oil, diesel, and gas are wrong (same fuel grid) where electricity is ok (its own electricity grid).