Mine cart undestroyable/ cant exit
Normally, when you hop in a minecart, you can travel to your location needed, then exit by either clicking a nearby block or destroying the mine cart.
Now, in the new 1.6.2 version, you cannot either destroy or get out of a mine cart, making it impossible to leave it without loading a older vertion
Steps to Reproduce:
1. place a mine cart on your rails
2. get in
3. you can destroy everything around you without being able to exit
NVM... just discovered the new way to dismount... though you should still be able to destroy the minecarts while in them