Update array remove swap to handle deleting last index

src/base/array/array.c

@@ -204,11 +204,15 @@ void arrayRemoveSwapEnd(WpArray array, u64 index, u64 item_size) {
 	if (header->count == 0 || index > header->count) { return; }
 
 	u64 last_item_index = header->count - 1;
+
+	if (index < last_item_index) {
 		void *cur_item  = arrayGetItemWithOffset(array, header->item_size * index);
 		void *last_item = arrayGetItemWithOffset(array, header->item_size * last_item_index);
 
 		memcpy(cur_item, last_item, header->item_size);
 		memset(last_item, 0, header->item_size);
+	}
+
 	--(header->count);
 }