Comment 2 for bug 1029409

Please note that this feature request primarily focusses on the question:
"HOW to make sure the user will recognize (and then repair) such errors in time, so s/he is less likely to base desicions on wrong numbers?".

"Backup then restore" is an answer to a different question, which is:
"WHEN the user has (accidentally) spotted one or more errors in running balances or totals, what can s/he do about it?" (see #804104).