Update filter for the productions without imputs, to not take care of the cancelled ones

cost_price_in_productions_without_inputs.diff

@@ -2,11 +2,14 @@ diff --git a/production.py b/production.py
 index afdcdc3..85e6ec5 100644
 --- a/trytond/trytond/modules/production/production.py
 +++ b/trytond/trytond/modules/production/production.py
-@@ -467,6 +467,10 @@ class Production(Workflow, ModelSQL, ModelView):
+@@ -467,6 +467,13 @@ class Production(Workflow, ModelSQL, ModelView):
              if move.production_input not in productions:
                  cls.__queue__.set_cost([move.production_input])
                  productions.add(move.production_input)
-+        pending_productions = cls.search([('inputs', '=', None)])
++        pending_productions = cls.search([
++                ('inputs', '=', None),
++                ('state', '!=', 'cancel'),
++                ])
 +        for production in pending_productions:
 +            cls.__queue__.set_cost([production])
 +            productions.add(production)