Retracting piston pushes entities standing behind the back of it

The bug

Retracting pistons push entities which are directly behind the piston base back a little bit, this can be seen in Recording #1.mp4. As the entity is not visibly intersecting with the retracting piston, there should be no reason why the entity is moved.

How to reproduce

1. Place for example a sideways facing piston
2. Stand directly behind the piston base
3. Power and unpower the piston
   → You should be pushed by the piston