getCorrectedQuantity must not use a mapped quantity, as any mapping must not be enabled in the simulation world. Instead, every caller must specify which is wanted very explicitly. This change also fixes that delivery error and profit quantity were not handled correctly when quantity was inversed.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@37274 20353a03-c40f-0410-a6d1-a30d3c3de9de