How do OV details gets posted in F0911

Hi,

I am using one of version of P4312 with setup on Process tab option 13. Journal Entries as 1. As per this in F0911, OV details will go as summery. I have created two purchase orders of multiples lines. After taking receipt of both orders from same version, when checked in F0911, one order's(2 lines on purchase order) entry is showing as summery(2 lines including plus and minus). While for another order it is showing line wise means purchase order has 3 line items, in F0911 for this 6 lines are there(including plus and minus lines). Is there any other