Deleting save slot does not delete all modded characters

[codewarrior0]

After gaining Ascension or unlock progress on a modded character, delete that save slot. Create a new save in the same slot. That modded character's progress will not be reset to zero. The prefs files for the modded characters remain in SlayTheSpire\preferences even after deleting the save slot.

This is likely to be resolved by a patch to SaveHelper.deletePrefs to delete the prefs files for the modded characters, with supporting code in CustomPlayer.

basemod (5.30.1)