Clear update moves when duplicating asset

issue11274
review386121002
(grafted from 2d59fd7207988c3c1924dab46e7d05a8e117a98d)

--HG--
branch : 6.0

asset.py

@@ -702,6 +702,7 @@ class Asset(Workflow, ModelSQL, ModelView):
         else:
             default = default.copy()
         default.setdefault('lines', [])
+        default.setdefault('update_moves', [])
         default.setdefault('number', None)
         default.setdefault('supplier_invoice_line', None)
         default.setdefault('move')