Jumping onto a non-full block while pushing against a fence allows the player to walk over it

Placed a chest next to a fence. When I'm in the corner (created by the fence and the chest) and I jump (running or not doesn't matter) onto the chest I can walk over the fence in the same movement.

If I stand still on the chest and then try to walk over the fence it won't let me, which makes sense.

It's possible that other non-fullblocks will have the same behaviour but I haven't tested this.