SPIGOT-7788: The healing power of friendship advancement is never granted

By: md_5 <git@md-5.net>

paper-server/nms-patches/net/minecraft/world/entity/ai/behavior/BehaviorAttackTargetForget.patch

@@ -13,7 +13,7 @@
  public class BehaviorAttackTargetForget {
  
      private static final int TIMEOUT_TO_GET_WITHIN_ATTACK_RANGE = 200;
-@@ -41,6 +47,18 @@
+@@ -41,6 +47,17 @@
                      if (entityinsentient.canAttack(entityliving) && (!flag || !isTiredOfTryingToReachTarget(entityinsentient, behaviorbuilder_b.tryGet(memoryaccessor1))) && entityliving.isAlive() && entityliving.level() == entityinsentient.level() && !predicate.test(entityliving)) {
                          return true;
                      } else {
@@ -23,11 +23,10 @@
 +                        if (event.isCancelled()) {
 +                            return false;
 +                        }
-+                        if (event.getTarget() == null) {
-+                            memoryaccessor.erase();
++                        if (event.getTarget() != null) {
++                            entityinsentient.getBrain().setMemory(MemoryModuleType.ATTACK_TARGET, ((CraftLivingEntity) event.getTarget()).getHandle());
 +                            return true;
 +                        }
-+                        entityliving = ((CraftLivingEntity) event.getTarget()).getHandle();
 +                        // CraftBukkit end
                          biconsumer.accept(entityinsentient, entityliving);
                          memoryaccessor.erase();