SPIGOT-7955: Failure teleporting players between worlds using Player#teleport() when player has attribute modifiers

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

paper-server/nms-patches/net/minecraft/server/level/EntityPlayer.patch

@@ -999,6 +999,15 @@
      }
  
      @Override
+@@ -1677,7 +2081,7 @@
+         this.onUpdateAbilities();
+         if (flag) {
+             this.getAttributes().assignBaseValues(entityplayer.getAttributes());
+-            this.getAttributes().assignPermanentModifiers(entityplayer.getAttributes());
++            // this.getAttributes().assignPermanentModifiers(entityplayer.getAttributes()); // CraftBukkit
+             this.setHealth(entityplayer.getHealth());
+             this.foodData = entityplayer.foodData;
+             Iterator iterator = entityplayer.getActiveEffects().iterator();
 @@ -1685,7 +2089,7 @@
              while (iterator.hasNext()) {
                  MobEffect mobeffect = (MobEffect) iterator.next();