Core/SAI: Fix SMART_EVENT_WAYPOINT_START not being called at every waypoint checking wrong path id parameter

Port From (https://github.com/TrinityCore/TrinityCore/commit/c2d2df96dbe8e31e27283f73bad576ab42a3d579)

Source/Game/AI/SmartScripts/SmartAI.cs

@@ -114,11 +114,9 @@ namespace Game.AI
             if (invoker && invoker.IsPlayer())
             {
                 _escortNPCFlags = me.m_unitData.NpcFlags[0];
-                me.SetNpcFlags((NPCFlags)0);
+                me.SetNpcFlags(0);
             }
 
-            GetScript().ProcessEventsFor(SmartEvents.WaypointStart, null, _currentWaypointNode, GetScript().GetPathId());
-
             me.GetMotionMaster().MovePath(_path, _repeatWaypointPath);
         }
 
@@ -394,17 +392,12 @@ namespace Game.AI
 
         public override void WaypointPathStarted(uint pathId)
         {
-            if (!HasEscortState(SmartEscortState.Escorting))
-            {
-                // @todo remove the constant 1 at some point, it's never anything different
-                GetScript().ProcessEventsFor(SmartEvents.WaypointStart, null, 1, pathId);
-                return;
-            }
+            // SmartAI::WaypointStarted() already handles the case of starting the 1st waypoint
         }
 
         public override void WaypointStarted(uint nodeId, uint pathId)
         {
-
+            GetScript().ProcessEventsFor(SmartEvents.WaypointStart, null, nodeId, pathId);
         }
 
         public override void WaypointReached(uint nodeId, uint pathId)