Riding horses, donkeys, or mules teleports you

I was going to send an attachment, but I got kicked out of my friend's world shortly after that, so I couldn't record it.

I tamed a horse without apples just by clicking on it. My friend put the cell in and walked around a little. Quando I went to try to ride, I was teleported to the water (because the horse went through the water). A little later, I was kicked out of the world