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four_color_rgb value is saved

four_color_rgb value is saved in the beginning of dcraw_process() call, may be changed by half_size setting, but restored again at the end of dcraw_process(), just before return. (LibRaw 0.13.5)

Could you please provide sample code with errorneous four_color_rgb/half_size behaviour?

-- Alex Tutubalin @LibRaw LLC