How to Reproduce:
-Set Accounting Schema to manual Period Control.
-Open Period May 2015
-Create Document Invoice Vendor in May (doc001). Status Completed
-Closed Period May 2015 and Open Periode June 2015.
-Now login in June 2015.
-Void document Invoice Vendor (doc001)
-Invoice vendor (doc001) became voided in May and the system will create reversal document in June (because period in June already Open)
I think its wrong. because when a period already closed. The document cannot be change.(if changed, then the report on the close period will changed) in this case it changes the aging report.