then if any particular water species is updated, the other water species' "mixing ratios" should be changed to reflect this update. Currently, this conservation of mass is only enforced for dry air mass (i.e. the pressure thickness is updated whenever any water species are modified in set_state_mass_conserving).
Because "mixing ratios" (or more accurately, specific masses) of water species in FV3 are defined relative to total mass:
https://github.com/VulcanClimateModeling/fv3gfs-wrapper/blob/1d049991c7c7bbddebff3b52b5ac8820d0f5e816/fv3gfs/wrapper/thermodynamics.py#L18-L20
then if any particular water species is updated, the other water species' "mixing ratios" should be changed to reflect this update. Currently, this conservation of mass is only enforced for dry air mass (i.e. the pressure thickness is updated whenever any water species are modified in
set_state_mass_conserving).