Minecraft Username: Dom_CZ

Brief Description: As on tittle, sponges can take water from owned regions, so u can easily grief someone.

Instructions:
1) Take a sponge
2) Place it near owned region
3) Boom, water from region has disappeared

How many times did you recreate this bug?:
Twice, I don't want to be banned for this "griefing"

Result:
You can grief someone.

Expected Result:
Remove this ability on regions.

Evidence:
Region after this dirt wall is not my, and I made a misstake, put sponge under me....