Core/Movement: reset position update interrupt info after the interrupt checks have been executed

* for discussion see: 02daf1bf3a (r36916229)

src/server/game/Entities/Unit/Unit.cpp

@@ -461,6 +461,9 @@ void Unit::Update(uint32 p_time)
     else if (!movespline->Finalized())
         InterruptMovementBasedAuras();
 
+    // All position info based actions have been executed, reset info
+    _positionUpdateInfo.Reset();
+
     if (!GetAI() && (GetTypeId() != TYPEID_PLAYER || (IsCharmed() && GetCharmerGUID().IsCreature())))
         UpdateCharmAI();
     RefreshAI();

src/server/game/Entities/Unit/Unit.h

@@ -716,6 +716,12 @@ enum ReactiveType
 
 struct PositionUpdateInfo
 {
+    void Reset()
+    {
+        Relocated = false;
+        Turned = false;
+    }
+
     bool Relocated = false;
     bool Turned = false;
 };