I need help fixing my inventory sorting script.

Basically, this is part of a script that lets me stack items of the same name within each item type list. The problem is, when I first add an item to the curInventory, it causes the size of the stack added to double because it is counted twice.

     function stackItems(){
     var lastItemIndex = curInventory.Count - 1; //the index of the last item in the list
     for(var i: int = 0; i < curInventory.Count;i++){ //for all items in the list
             
         if(curInventory[lastItemIndex].name == curInventory[i].name){ //if the name of the last item in the list is the same as the name of the 
                                                                       //current item being checked
             
             if (curInventory[lastItemIndex].stackable == true){ //if the item is able to be stacked
             
                 if(curInventory[i].stackCount < curInventory[i].maxStack){    //if the number of items currently in the stack is
                                                                                           //less than the max number of items able to stack
                     if(
                     curInventory[i].stackCount += curInventory[lastItemIndex].stackCount; //increase the stack count of the current item by 
                                                                                           //the number of items in the new stack. This is what causes new items to be counted twice.
                      
                      if (lastItemIndex !=0){
                      curInventory.RemoveAt(lastItemIndex);
                      }
                 }
             }
         }
     }
 }

I could really use a fresh set of eyes to help me figure out how I could adjust my current script so that it doesn't count items added to a blank curInventory twice.