Deletion Flag disappeared from PO Line Item in fully released PO

[anilbedi_sapsuperadminist]

Dear Members, 

Experiencing the strange behaviour from ERP 6.0 system. Seeking your suggestion or solutions on below. 

User has delete some of the line items while creating PO, --> submit for release --> PO is fully released --> But then after sometime Deletion flag disappeared from PO Line Item which was deleted --> one can create GR for those line items. 

There is audit Trace for deletion of Item in Item Change as well as in CDPOS and CDHDR Table. But there is no trace of removal of deletion flag. 

Below Screen Shot will explain more. 

1. Item Changes Screen shot. Item 10 Deleted and PO is released, No trace on removal of deletion flag. 

2. Notice Item 10 in PO screen deleting flag is disappeared, and PO is fully released.