Version: OpenBlocks 1.2.7

Not sure if it is a bug, but when Player 1 dies with items and the grave is made. Player 2 can either place a grave or die right next to Player 1 grave breaking his grave and obtaining the items inside along with picking up the grave as a item.

I have been able to replicate this 5 times on my server.

Graves code was changes some time ago, report is probably not longer valid. Anyway, couldn't reproduce.