Affix string without parameters still overwrites Affix constructor's default values

[aaaaalbert]

I'm writing an Affix component that should have its optional_args set to some default values. When I build the stack from an Affix string with no arguments like so,

server_affix_object = AffixStackInterface("(MakeMeHearAffix)")

then MakeMeHearAffix's constructor is called with an empty list for the optional_args, thus overwriting my default values. Clearly, I can work around this and set the defaults to be active if [] is passed in place of proper optional arguments, but I would prefer that the familiar Pythonic way Just Worked (TM).