Only reset Business Link.

product/ERP5/Document/SimulatedDeliveryBuilder.py

@@ -131,8 +131,10 @@ class SimulatedDeliveryBuilder(BuilderMixin):
           if movement.getDeliveryValueList()==[]:
             movement_list.append(movement)
         else:
-          # drop causality links
-          movement.setCausalityList([])
+          # drop causality links to Business Paths/States
+          movement.setCausalityList([q.getRelativeUrl() for q in \
+            movement.getCausalityValueList() if q.getPortalType() \
+              not in self.getPortalBusinessLinkTypeList()])
     # XXX  Add predicate test
     # XXX FIXME Check that there is no double in the list
     # Because we can't trust simulation_select_method

product/ERP5/mixin/movement_collection_updater.py

@@ -191,4 +191,6 @@ class MovementCollectionUpdaterMixin:
       # for each touched non buildable movement reset causality_list
       if not movement.isBuildable(movement.getCausalityValue(
           portal_type='Business Link')):
-        movement.setCausalityList([])
+        movement.setCausalityList([q.getRelativeUrl() for q in \
+          movement.getCausalityValueList() if q.getPortalType() \
+            not in self.getPortalBusinessLinkTypeList()])