fix crash in EGS when client asks to create an item with a sheet ID EGS doesn't know

by avoiding access the null item pointer outside the if(null) scope.

--HG--
branch : develop

code/ryzom/server/src/entities_game_service/game_item_manager/game_item_manager.cpp

@@ -233,6 +233,7 @@ CGameItemPtr CGameItemManager::createItem( const CSheetId& sheetId, uint16 quali
 //				nlerror("<CGameItemManager::createItem> Can't find the owner item %s",owner.toString().c_str());
 //			}
 //		}
+		log_Item_Create(item->getItemId(), item->getSheetId(), item->getStackSize(), item->quality());
 	}
 	else
 	{
@@ -240,8 +241,6 @@ CGameItemPtr CGameItemManager::createItem( const CSheetId& sheetId, uint16 quali
 		nlwarning("<CGameItemManager::createItem> Can't create an item with invalid sheet '%s'", sheetId.toString().c_str());
 	}
 
-	log_Item_Create(item->getItemId(), item->getSheetId(), item->getStackSize(), item->quality());
-
 	return item;
 
 } // createItem //