Buckets Dissapear When Used

Put the summary of the bug you're having here

What I expected to happen was...:
For The Bucket To Stay

What actually happened was...:
When I Picked Up Water It Disappeared

Steps to Reproduce:
1. Make A Bucket
2. Pickup Water/Lava
3. Then It Disappears

(If It did not work I made the bucket in 0.7.0)<-- That might be the problem