I think he's suggesting that you happen to actually know the right password, and...

AjithAntony on June 16, 2015 | parent | context | favorite | on: KeePass – questionable security

I think he's suggesting that you happen to actually know the right password, and will attempt to enter it after the failed keepass attempt? But then, if you know the right password, you could also visually inspect the keepass data to know it was wrong.