Using /ride on a player every tick no longer prevents them from dismounting client-side

Previously, summoning an entity (e.g. an armour stand) and running /ride @p mount @n[type=armor_stand] every tick would make the player stay stuck on the armour stand. Pressing shift would do nothing.

Now, if the player presses shift, they will dismount and then get re-mounted again. This was not mentioned in a changelog and leads to unintended flickering and lack of control over player mounting.