Steps to Reproduce
Reproduce the setup shown in the attached video (includes a sitting tamed animal leashed to a fence with adjacent blocks and a chain with a pressure plate on top of it).
Expected Result
A sitting, leashed animal should remain completely still and never jump just like in all previous versions, regardless of nearby blocks or entities except if it falls in water.
Observed Result
The sitting animal occasionally behaves as if it were standing:
It jumps onto nearby blocks (chains or full blocks).
It appears visually sitting, but behaves as mobile.
He didn’t jump, he got pulled up by the lead.