Some options for CO2 were not working due to a reversal of lines in GSI_GridComp that attempted to define seasonal co2 option before time was properly set. This is zero diff to present ico2=3 settings anavinfo. Fix allows for options 0 and 2 to work as meant to (ico2 = 1 is not implemented - don't ask me why).
I had an old branch bugfix/msienkie/gridtime with a change in GEOSaana_GridComp/GSI_GridComp/GSI_GridCompMod.F90 similar to this - I will wipe out my old branch in favor of yours.
Some options for CO2 were not working due to a reversal of lines in GSI_GridComp that attempted to define seasonal co2 option before time was properly set. This is zero diff to present ico2=3 settings anavinfo. Fix allows for options 0 and 2 to work as meant to (ico2 = 1 is not implemented - don't ask me why).