Core/Characters: Fixed crash at character creation.

closes #5256

src/server/game/Handlers/CharacterHandler.cpp

@@ -615,6 +615,7 @@ void WorldSession::HandleCharCreateCallback(PreparedQueryResult result, Characte
             }
 
             Player newChar(this);
+            newChar.GetMotionMaster()->Initialize();
             if (!newChar.Create(sObjectMgr->GenerateLowGuid(HIGHGUID_PLAYER), createInfo))
             {
                 // Player not create (race/class/etc problem?)