Fix

invoice.py

@@ -19,7 +19,9 @@ class Invoice(metaclass=PoolMeta):
             if invoice.agent and invoice.agent.plan and invoice.agent.plan.percentage:
                 commissions.extend(invoice.create_commission_by_percentage())
             else:
-                commissions.extend(super(Invoice, cls).create_commissions([invoice]))
+                _comms = super(Invoice, cls).create_commissions([invoice])
+                if _comms:
+                    commissions.extend(_comms)
 
         return commissions
 

tryton.cfg

@@ -1,7 +1,6 @@
 [tryton]
-version=6.0.1
+version=6.0.2
 depends:
-    ir
     account
     account_invoice
     invoice_report