*Improvements in map managing.

--HG--
branch : trunk

src/game/Pet.cpp

@@ -1778,9 +1778,10 @@ bool Pet::IsPermanentPetFor(Player* owner)
 
 bool Pet::Create(uint32 guidlow, Map *map, uint32 phaseMask, uint32 Entry, uint32 pet_number)
 {
+    assert(map);
     SetMap(map);
-    SetPhaseMask(phaseMask,false);
 
+    SetPhaseMask(phaseMask,false);
     Object::_Create(guidlow, pet_number, HIGHGUID_PET);
 
     m_DBTableGuid = guidlow;