Flying Through Blocks Above You After Letting go of sneak and still Pressing Space.

What I expected to happen was...:
What I expected to happen was that I would stay under the block above me when I let go of the space and sneak key while I was in flight. (In Creative Mode)

What actually happened was...:
What actually happened was I went through the block I was under.

Steps to Reproduce:
1.Go under at least one block in Creative mode.
2.Double press space to activate flight.
3.Press space and sneak at the same time to stay in flight as if you were right clicking a sign onto a chest.
4.Let go of the sneak key while still pressing space to fly upwards.
5.You now should have been able to fly through the block that was above you.
6.Also if you were in one of the Third Person Point of Views once you started going through the block it wold put your view back to the default view.