If you are sneaking and then get hit, you will be teleported backwards and Moved wrongly will be displayed in the console.
This is critical as it means you can avoid knockback in pvp.
Previously Entity.move had a 1 block buffer in all directions for all Entities. In 1.11, the size of this buffer is set in a field and is higher for horses, endermen, but 0 for players. Setting it to 1 for players removed the issue.