SPIGOT-3789: Can't Remove Entity Equipment in Same Tick Spawned without using Consumer

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

paper-server/nms-patches/EntityTrackerEntry.patch

@@ -145,8 +145,11 @@
              if (!collection.isEmpty()) {
                  consumer.accept(new PacketPlayOutUpdateAttributes(this.tracker.getId(), collection));
              }
-@@ -238,6 +290,11 @@
+@@ -236,8 +288,14 @@
+             if (!list.isEmpty()) {
+                 consumer.accept(new PacketPlayOutEntityEquipment(this.tracker.getId(), list));
              }
++            ((EntityLiving) this.tracker).updateEquipment(); // CraftBukkit - SPIGOT-3789: sync again immediately after sending
          }
  
 +        // CraftBukkit start - Fix for nonsensical head yaw
@@ -157,7 +160,7 @@
          if (this.tracker instanceof EntityLiving) {
              EntityLiving entityliving = (EntityLiving) this.tracker;
              Iterator iterator = entityliving.getEffects().iterator();
-@@ -278,6 +335,11 @@
+@@ -278,6 +336,11 @@
              Set<AttributeModifiable> set = ((EntityLiving) this.tracker).getAttributeMap().getAttributes();
  
              if (!set.isEmpty()) {