Summary:
When a hoglin attached to a lead turns into a zoglin, the lead does not break. In Java Edition, the lead breaks.
Steps to Reproduce:
Spawn a hoglin in the Overworld
Attach a lead to it
Wait for the hoglin to turn into a zoglin
Observed Results:
When the hoglin turns into a zoglin, the lead does not break.
Expected Results:
The lead should break.
Can confirm for 1.16.40