Well, I think it happens no matter if you change the setup name. When you go to garare in hotlap mode, the hotlap gets automatically reset. Which is not a bug.
Yeah, you dont have to change name of setup, just enter pits and you lost your hotlap. However I think replay should be saved automaticly when you enter pits.
Also when I'm crashing with my AIs in single player and during race go to pits, then I wont be able to save replay and sometimes crashes are really funny
replay shouldnt be stop recorded when enter pits
Though I did recover one hotlap by correctly renaming the temp file, depending on what stage you get to the temp file, you may still get a valid hotlap.
BTW, ran a beautiful XFR hotlap on KY1. 45.36, lost it through my stupidity. Luckily bettered it a few minutes later... Wasn't a nice feeling...
I do not agree with you, this is unnecessary. For example, suppose you have passed not successfully lap and you want to change the settings. Why do you replay with unsuccessful lap?