For backward compatibility: when a time period is closed, and a GlAccountHistory record for the same is already present (old mode, before revision 1530273), do not return an error and instead fill the balance fields of the record.

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1530634 13f79535-47bb-0310-9956-ffa450edef68