commit dfee579e8bb8eaeb814a5b8293c3dd962e5e2e35
Author: Dino Bollinger <dino.bollinger@gmail.com>
Date:   Wed Dec 1 00:29:52 2021 +0100

    Duke3D: Remove the 'previousboardfilename' mapart hack
    
    This was a bandaid that prevented repeatedly loading the same
    mapart when loading savegames. This meant having to constantly
    update the buffer whenever clearing mapart, which is undesirable.
    
    Fixes mapart not reloading after quitting to title, or ending an
    episode and then loading a savegame.

See https://voidpoint.io/terminx/eduke32 for more details.