servers don't work snapshot 14w04b

when joining server running 14w04b on Minecraft 14w04b server says "failed to login: invalid session (try restarting your game)" after restarting game, server says: "failed to login: invalid session (try restarting your game)"

What I expected to happen was...:
Server would join correctly

What actually happened was...:
when joining server running 14w04b on Minecraft 14w04b server says "failed to login: invalid session (try restarting your game)" after restarting game, server says: "failed to login: invalid session (try restarting your game)"

Steps to Reproduce:
1. open minecraft on snapshot 14w04b
2. start server running 14w04b
3. start minecraft
4. attempt to join server.
Done