Flower Pots causing minecraft to crash

What I expected to happen was...:
I expected to have no problem with this.

What actually happened was...:
When I logged on to my server as soon as I logged on my client crashed. I moved my self via the console to an area with out flower pots and I had no problem. I spawned a flower pot and I crashed instantly

Steps to Reproduce:
1. Connect to a server
2. Approach a flowerpot
3. Crash