Partial override for MapGenerationParameters impossible?

[arousle]

I'm new to modding Barotrauma, and for my first mod I wanted to do a single override to change the Jovian Radiation RadiationStep to 20.0 (from its default value of 100.0).

After reading the modding guide on overrides, I thought I could simply do this:

<!-- filelist.xml -->
<contentpackage
    name="Slowed (20%) Jovian Radiation"
    modversion="1.0.0"
    gameversion="1.0.8.0"
    corepackage="false"
>
    <MapGenerationParameters file="%ModDir%/mapGenerationParameters.xml" />
</contentpackage>

<!-- mapGenerationParameters.xml -->
<Override>
    <MapGenerationParameters>
        <RadiationParams
            radiationstep="20.0"
        />
    </MapGenerationParameters>
</Override>

But after (a frustrating amount of) trial-and-error, it seems that this sort of partial override isn't actually possible. It has been my experience that any partial override of the MapGenerationParameters either crashes the game upon map generation or causes other unexpected behavior to occur. Further evidence to corroborate this is that all examples of mods on GitHub which override the MapGenerationParameters do so by fully specifying all of its parameters (e.g. (1), (2)).

I understand this means that only one mod's changes to MapGenerationParameters can ever be active, which doesn't seem very modular.
Additionally, each mod which does not want to change even a single MapGenerationParameters from the game's defaults would have to be updated if any of the defaults change, which doesn't seem very future-proof.

Is this inability to provide partial overrides to MapGenerationParameters working as intended? Am I missing something?

[BiffW]

Actually, any form of partial override is not supported officially.
There's an unoffical branch that provided partial override for items and characters for now.
You can have access to it by installing this: https://steamcommunity.com/sharedfiles/filedetails/?id=2856758496

[arousle]

Have the devs given any word on whether they'll address this issue? Do they even see it as an issue?

Thanks for the info on the mod. Shame that pull request looks like a mess, to be honest, and I doubt it'll ever be merged.