Items Getting Removed

You lose everything in your inventory

Go to the nether is what i expected to happen
Go to the nether and keep all items

Lost Everything
Was going into the nether and when I was in a portal the server turned off for a minute and when it started back up I was at spawn with nothing... The server is running the newest snapshot 13w36b and the clients are too... the server is survival and thats it.

Steps to Reproduce:
1. Log into a server
2. Step into a portal
3. Server is turned off when your teleporting to the nether
4. When you log in you're at spawn with nothing