Remove reference copy on reversal transaction

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/AccountingTransaction_createReversalTransaction.xml

@@ -85,7 +85,6 @@ reversal = accounting_module.newContent (\n
   mapping={\'title\': unicode(context.getTitleOrId(), \'utf8\'),\n
            \'specific_reference\': specific_reference}),\n
     resource=context.getResource(),\n
-    reference=context.getReference(),\n
     causality_value_list=causality_value_list,\n
     created_by_builder=1 # XXX to prevent init script to create lines\n
   )\n

bt5/erp5_accounting/bt/revision

-1479
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+1480
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