@Zing "It would take a lot of development work, and this would require an unnecessary effort from the system, is much more consistent for users to have common sense and rename files correctly." <-- This is literally the opposite of everything RecalBox is about. Perhaps that attitude would be more appreciated by Retropie users.
It is inconsistent for a team developing something such as Recalbox to not spent their time and effort on a feature that eases the burden on the user and requires the devs only once to check for a correct md5 and rename the file automatically.
Something like that has been proposed by more than one user, and is the source of ongoing complaints. Addressing it is only "Common Sense". And if the web interface is broken by this update: Why release broken updates? You need a new team.
Enjoy your attitude? It's time Recalbox got forked.