consider quantity ratio to solve quantity divergence correctly for a delivery line with multiple simulation movements. this will fix the failures of testPackingList.py (test_05c_SimulationChangeQuantityAndAcceptDecisionForMergedLine) introduced in r.22774.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22775 20353a03-c40f-0410-a6d1-a30d3c3de9de