Timothy Hoover

Oh, I didn't know that. The bug is probably fixed then as this doesn't happen on regular blocks like it used to.

In my creative snapshot 15w47c I summoned a type 1 tamed cat and attached a lead to it. I then began to move it over a chest, upgraded to a double chest, furnace and bed, I then took off the lead and began making the cat jump onto each one by flying up high, nothing was wrong. After this I reattached a lead to continue making it move onto the blocks, still nothing. However when the cat wandered aimlessly by itself onto the double chest it sat by itself and would not stand until I broke the half of the chest it was on, it resumed the standing position, and I was then able to make it sit and stand normally again.

After this post I resumed testing and found that when cat wandered onto the bed, by itself, it would also sit by itself and not stand on command. When I broke the bed it resumed the standing position and was able to sit and stand regularly again.

Does one have to create a new issue to update the affected versions?