How to re-check mappers and auto-apply fix?

[TroudhuK]

If we already loaded a lot of games, ignoring the "unsupported mappers" warning, is there a way to automatically recheck all the games, and for example use retroarch / nestopia mods, instead of deleting / readding each game one by one?

[TroudhuK]

I solve my request by rewriting NesGame::Patch() to do args += " --retroarch"; instead of error popups, and I reload the full set with this rule, all the games should now work (instead of Dooly Bravo Land, and of course Game Master Kid, I don't know what is this non-working ROM).