Applied to the noahmp non-refectored code, but not yet in the official
NCAR WRF release. These include:

 * https://github.com/NCAR/noahmp/issues/92 (Stomatal resistance incorrectly dependent on FVEG)
 * https://github.com/NCAR/noahmp/commit/218eb5a7 (snow combination layer index)
 * https://github.com/NCAR/noahmp/commit/a26f91fb (ground heat flux sign in urban diagnostic; affects sf_urban_physics = 1 ! SLUCM)