When placing a bucket of water into the same block that a button or ladder exists it causes the button/ladder to be destroyed and doesn't drop the item.

Put the summary of the bug you're having here

What I expected to happen was...:
I expected to not be able to place the water, upon placing the water I expected the item to have dropped.

What actually happened was...:
Water was allowed to be placed, and no item dropped.

Steps to Reproduce:
1. Place any button or a ladder on a block.
2. Place a block beside the block that the button or ladder occupies.
3. Place water against the second block that was placed.