Fix bug that creatures which use FleeingMovementGenerator would not attack after respawning.

Bug was caused by improper react state

--HG--
branch : trunk

src/server/game/Entities/Creature/Creature.cpp

@@ -410,13 +410,7 @@ bool Creature::UpdateEntry(uint32 Entry, uint32 team, const CreatureData *data)
     if (isTrigger())
         SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
 
-    if (isTotem() || isTrigger()
-        || GetCreatureType() == CREATURE_TYPE_CRITTER)
-        SetReactState(REACT_PASSIVE);
-    /*else if (isCivilian())
-        SetReactState(REACT_DEFENSIVE);*/
-    else
-        SetReactState(REACT_AGGRESSIVE);
+    InitializeReactState();
 
     if (cInfo->flags_extra & CREATURE_FLAG_EXTRA_NO_TAUNT)
     {
@@ -1602,6 +1596,9 @@ void Creature::Respawn(bool force)
         uint16 poolid = GetDBTableGUIDLow() ? poolhandler.IsPartOfAPool<Creature>(GetDBTableGUIDLow()) : 0;
         if (poolid)
             poolhandler.UpdatePool<Creature>(poolid, GetDBTableGUIDLow());
+            
+        //Re-initialize reactstate that could be altered by movementgenerators
+        InitializeReactState();
     }
 
     UpdateObjectVisibility();

src/server/game/Entities/Creature/Creature.h

@@ -428,9 +428,20 @@ class Creature : public Unit, public GridObject<Creature>
         bool canWalk() const { return GetCreatureInfo()->InhabitType & INHABIT_GROUND; }
         bool canSwim() const { return GetCreatureInfo()->InhabitType & INHABIT_WATER; }
         //bool canFly()  const { return GetCreatureInfo()->InhabitType & INHABIT_AIR; }
+        
         void SetReactState(ReactStates st) { m_reactState = st; }
         ReactStates GetReactState() { return m_reactState; }
         bool HasReactState(ReactStates state) const { return (m_reactState == state); }
+        void InitializeReactState()
+        {
+            if (isTotem() || isTrigger() || GetCreatureType() == CREATURE_TYPE_CRITTER)
+                SetReactState(REACT_PASSIVE);
+            else
+                SetReactState(REACT_AGGRESSIVE);
+            /*else if (isCivilian())
+            SetReactState(REACT_DEFENSIVE);*/;
+        }
+
         ///// TODO RENAME THIS!!!!!
         bool isCanTrainingOf(Player* player, bool msg) const;
         bool isCanInteractWithBattleMaster(Player* player, bool msg) const;