Tim, the option should be not defined by default, which means auto-rotate for best fit on image files. If IPP_TAG_NOVALUE is legal for options of any data type, pycups needs to be able to handle this. system-config-printer should consider the option value "None" as the option not being defined. It should not impose a value to the option, to do not loose the functionality of the undefined state, as here the auto rotation.
Tim, the option should be not defined by default, which means auto-rotate for best fit on image files. If IPP_TAG_NOVALUE is legal for options of any data type, pycups needs to be able to handle this. system- config- printer should consider the option value "None" as the option not being defined. It should not impose a value to the option, to do not loose the functionality of the undefined state, as here the auto rotation.