UPDATE: It's duplicated, I didn't notice in the recent reports but I found them. https://bugs.mojang.com/browse/MC-152824

In this version, when you close a door to fast in fron of you, you get stucked at it instead of passing through like in older versions, so if you open it when you are stucked you commonly start crouching and opening half door, that you can keep open exiting with an enderpearl.

Here there's a YouTube video: https://www.youtube.com/watch?v=9HHhtdC8GHE

The most important part of this bug is not just opening half of the door that can be funny, but you get stucked when you close the doors fast instead of just passing through like before, and this can be a serious problem playing survival if you don't have enderpearls or your door is on a high wall (like happened to me in my slime chunk where de door was right on the bottom of an enormous plain wall.