Do no run mts mto procurement if it already has been splited into at least another procurement

stock_mts_mto_rule/README.rst

@@ -49,6 +49,15 @@ Configuration
 
 You have to select 'Use MTO+MTS rules' on the company's warehouse form.
 
+Known issues
+============
+
+If you cancel a delivery order and then recreate it from Recreate
+Delivery Order button in sale order form, then the stock level at the time of
+the Re-Creation won't be taken into account. So if a purchase order was created
+when the sale order was first validated, a similar purchase order will be created
+during the Re-creation of the delivery order, even if not needed regarding the actual stock.
+
 Bug Tracker
 ===========
 

stock_mts_mto_rule/model/procurement.py

@@ -92,6 +92,8 @@ class ProcurementOrder(models.Model):
     def _run(self, procurement):
         if procurement.rule_id and \
                 procurement.rule_id.action == 'split_procurement':
+            if procurement.mts_mto_procurement_ids:
+                return super(ProcurementOrder, self)._run(procurement)
             uom_obj = self.env['product.uom']
             needed_qty = procurement.get_mto_qty_to_order()
             rule = procurement.rule_id