Core/Creatures: Compute CombatReach and BoundingRadius using DisplayScale

Port From (https://github.com/TrinityCore/TrinityCore/commit/81ea6f54d93ee10b03e6432c6071e0d0983796a2)

Source/Game/Chat/Commands/ModifyCommands.cs

@@ -196,16 +196,12 @@ namespace Game.Chat
         [Command("scale", RBACPermissions.CommandModifyScale)]
         static bool HandleModifyScaleCommand(CommandHandler handler, StringArguments args)
         {
-            float Scale;
+            float scale;
             Unit target = handler.GetSelectedUnit();
-            if (CheckModifySpeed(args, handler, target, out Scale, 0.1f, 10.0f, false))
+            if (CheckModifySpeed(args, handler, target, out scale, 0.1f, 10.0f, false))
             {
-                NotifyModification(handler, target, CypherStrings.YouChangeSize, CypherStrings.YoursSizeChanged, Scale);
-                Creature creatureTarget = target.ToCreature();
-                if (creatureTarget)
-                    creatureTarget.SetDisplayId(creatureTarget.GetDisplayId(), Scale);
-                else
-                    target.SetObjectScale(Scale);
+                NotifyModification(handler, target, CypherStrings.YouChangeSize, CypherStrings.YoursSizeChanged, scale);
+                target.SetObjectScale(scale);
                 return true;
             }
             return false;

Source/Game/Chat/Commands/NPCCommands.cs

@@ -1036,8 +1036,7 @@ namespace Game.Chat
                     return false;
                 }
 
-                creature.SetDisplayId(displayId);
-                creature.SetNativeDisplayId(displayId);
+                creature.SetDisplayId(displayId, true);
 
                 creature.SaveToDB();