Mobs lose their attack target when converted

When a mob gets converted to another mob while it is attacking something, it will lose its target once the conversion is completed.

Steps to reproduce:

1. For example, summon two skeletons.

2. Make them shoot each other, then make sure they don't die (instant damage potions).

3. Trap one of them in powder snow.

4. ❌ Once one skeleton has converted into a stray, it will stop attacking the second skeleton, and the other way around.