[Grief Report?] Rollback please (LWC bugged and random block gone)

Minecraft Username:Thecreator767

Affiliation:Resident

Town Name:Mineyork

Is the Grief located in the Wild? If so, is there a pending Mayor application for this defined region?
No
Co-ordinates of Grief:
X:-136
Y:69
Z:-9910

Brief Description:I was playing around with water to test a bug
with xx5mike5xx's heads and I accidentally placed water where jetscat's head
was, but when I did it the head automatically disappeared without a trace
between 10:20 and 10:24 AM on 4-7-2013
Evidence:I placed water to see if the lwc would hold because I wanted
to show xx5mike5xx something, but the head just dissapeared the second water was placed
and no entity was dropped out.
Rollback:Yes please because mike paid 45k for the head and none of us
have the head :/ also the head did not drop like it was supposed to and mike still
has 100 locks even though the head dissapeared.