InstantStateManager has invalid assumption

[Qendolin]

InstantStateManager assumes that it's always synced, since any changes applied to the input are instantly applied to the config. But this does not hold true if the config value changes through different means. In such cases the UI is desynced and, while it does still sometimes display the correct value, brings all sorts of weird behavior.

Why would the config value change?
In my case I have a list of presets, and a lot of options for each. The 'active' preset is selected from a list (like an EnumController). The other options act on the active preset. So when switching presets issue described above happens.