Hadrian should warn when multiple flavours have same name
A flavour like this
userDefaultFlavour :: String
userDefaultFlavour = "default"
userFlavour :: Flavour
userFlavour = Flavour { name = userDefaultFlavour, ... }is hard to use (if not impossible) because (I think) by default there's another
flavour with the name "default" already defined (in Settings.hadrianFlavours)
so when I ask hadrian to use the "default" flavour the other one is used instead
of mine.
I think Hadrian should be warning the user when multiple flavours have the same name as some of those flavours will be unusable by the user.