Flower duplication glitch

What I expected to happen was...:
I thought the flower pot and the flower would break and only one pot and flower would appear.

What actually happened was...:
A single pot appeared but two flowers appeared when i broke the block under the pot with a blue orchid in it. I've only tested with that flower. So i don't know if it's just that one.

Steps to Reproduce:
1. Put a block down.
2. Put a flower pot on top of the block with a blue orchid in it.
3. Break the block.
4. You'll get the block, a single flower pot and two flowers.