The bug
When there are multiple evokers and one of them gets attacked, all of the evokers except for the originally attacked one will continue summoning fangs and vexes after their target dies.
To reproduce
Spawn multiple evokers
Spawn a snow golem
Original description
I just created a chaos with many types of illagers, iron golems and blazemen together. After the fighting, some ranged illagers, like pillagers and evokers, attack the "air" although their target died already.
Linked issues
Attachments
Comments

The pillager part was already reported as MC-137506; I've changed the report to focus on evokers since that hasn't been reported before.