hack: integreate float equivalence tester patch

product/ERP5/Document/FloatEquivalenceTester.py

@@ -94,6 +94,13 @@ class FloatEquivalenceTester(Predicate, EquivalenceTesterMixin):
       #      How to know if the other value is negligible or not ?
       epsilon = abs(prevision_value * DEFAULT_PRECISION)
 
+    if decision_value == 0.0:
+      # A delivery quantity of 0 is an exceptional case that we cannot really
+      # handle with the current approach of delivery ratio.
+      decision_value = sum([m.getCorrectedQuantity() for m in
+        decision_movement.getDeliveryRelatedValueList(
+          portal_type='Simulation Movement')])
+
     delta = abs(decision_value - prevision_value)
 
     # XXX we should use appropriate property sheets and getter methods