Add related_party in search context of secondary party

issue9333
review323301002

subscription.py

@@ -71,7 +71,10 @@ class Subscription(Workflow, ModelSQL, ModelView):
             'readonly': ((Eval('state') != 'draft')
                 | Eval('lines', [0])),
             },
-        depends=['state'])
+        search_context={
+            'related_party': Eval('party'),
+            },
+        depends=['state', 'party'])
     invoice_address = fields.Many2One(
         'party.address', "Invoice Address",
         domain=[