When teleported by an ender pearl, your head pitch rotation is reset

When you throw an ender pearl, the pitch rotation of your head will be reset upon teleportation. This is a new bug as of 1.1.0.0. It was not occurring in 1.0.5.54 & 1.0.6.0.

Steps to Reproduce:

1. Look down.
2. Throw an ender pearl.
3. Notice how you are now looking straight forward.