I was just going to ask about this. Since the albedo doesn't decrease when water vapour desublimate into ice, you benefit from adding water vapour first (you should do this anyway to let it condense to water/desublimate to ice while you're adding other gases), since the albedo will increase when the ice sheet melts (at -17C?).
I can confirm this works as per 1. 12, and breaks Albedo.
To replicate, SM change the atmosphere of a planet to reduce its temperature, add hydro, then atmo change to raise its temperature.
The Albedo will increase. You can repeat this to raise the albedo as high as you wish.
The reverse is also true - set hydro high, and atmo-reduce temperature. Remove the hydro, re-set the atmo, and albedo lowers.
Titan is a good example - normally it cannot get into perfect habitable range - with max Greenhouse Factor, it can only reach a temperature factor of 0. 637.
But if you add enough hydrographic extent (the perfect number is 42, of course) before you add greenhouse factor, then albedo will rise to 1. 063 which allows the temperature to reach -9. 6 degrees C.