When entering transactions for category and its subcategories, reports in BUDGET and REPORTS will sum and show the whole category two times, what is very confusing and can surprise with wrong summaries.
Example:
Suppose category GIFTS with subcategories PETER, MARTIN.
Enter expenses 1000 eur for GIFTS:Peter and 2000 eur for GIFTS:Martin, check BUDGET, REPORTS => correct numbers, 3000 eur spent.
Add expense 33333 eur for category GIFTS (with no subcategory) and check BUDGET, REPORTS => category GIFTS is shown two times with the same amount, what can confuse the user that he spent more money than he did.
