Acid rain can't replace normal rain when playing with rain set to lots

This happens because the game only checks for acid rain to start when precipitation starts, which normally only happens when rain is set to lots.

local StartPrecipitation = _ismastersim and function(temperature)
    _moisture:set(_moistureceil:value())
    _moisturefloor:set(RandomizeMoistureFloor(_season))
    _peakprecipitationrate:set(RandomizePeakPrecipitationRate(_season))
    local riftspawner = _world.components.riftspawner
    if TUNING.ACIDRAIN_ENALBED and riftspawner and riftspawner:IsShadowPortalActive() then
        _preciptype:set(PRECIP_TYPES.acidrain)
    else
        _preciptype:set(PRECIP_TYPES.rain)
    end
end or nil

There should be an event that checks to switch acid rain on or off when a shadow rift opens. Either in general, or only when rain is set to lots, if the current behavior is to be kept.