During the forth wave in the raid ,when I was invisible I hit a witch accidently ,and she starts attacking me and when she threw a harming potion on me ,the pillager that is next to me got damaged by the witch and then the pillager starts attacking the witch,the same thing happens with other illagers(exception of vindicator) they start attacking her,the problem is the witch in illager's team but that does not mean she is an illager,that means that the illagers should not attack her.

How to reproduce:

1-effect yourself with bad omen level 2.

2-wait until forth wave.

3-drink invisibility potion because illagers behave like creeper, if they see you, they won't attack the witch even if she attacked them.

5-hide any villager or iron golem with invisibility potion and don't let iron golems attack the illagers.

4-attack the witch and go to the nearest pillager without letting him exposing you.

5-when the witch throws a harming potion, the pillager will be damaged and he will start attacking her without any reaction from her.