builder: autoPlan only if possible

product/ERP5/mixin/builder.py

@@ -569,6 +569,7 @@ class BuilderMixin(XMLObject, Amount, Predicate):
     delivery = delivery_module.newContent(
       portal_type=self.getDeliveryPortalType(),
       created_by_builder=1)
+    if self.getPortalObject().portal_workflow.isTransitionPossible(delivery, "auto_plan"):
       delivery.autoPlan()
     delivery.immediateReindexObject()
     return delivery