Spectator mode frozen entities and vision overlay

Hello Mojang!
Just recently a few minutes ago i found some bugs within the new snapshot that you just released. First of all when i entered the view of an entity everything just froze. The entities i tried out was all looking around. But not moving. Items i threw was stuck in mid air and other mobs around wasn't moving. Second of all, i had troubles finding out how to leave the entity. So i left when within an entity and relogged. I got an error and when i entered the world again i still had that "vision". Example: I went to see the creeper view and when i relogged i was not in the creeper view but still had that green overlay on my screen.
That's all! Great snapshot and as a mapmaker i really appreciate this!

Keep the awsome work going Mojang!