Arguements type-constrained to an enum prevent this module from working

[codesections]

SuperMAIN functions correctly with a module like

use SuperMAIN;

sub MAIN(Str :$named, Str :$other-named) { say $named; }

which can be used as follows:

$ raku SuperMAIN-test.raku -n test_name
test_name

But if I add an enum option like this

use SuperMAIN;

enum Option <one two>;
sub MAIN(Str :$named, Str :$other-named, Option :$option ) { say $named; }

It no longer works:

$ raku SuperMAIN-test.raku -o one
Usage:
  SuperMAIN-test.raku [--named=<Str>] [--other-named=<Str>] [--option=<Option> (one two)]

The presence of that enum option also stops other options from being processed correctly:

$ raku SuperMAIN-test.raku -n test_name --option=one
Usage:
  SuperMAIN-test.raku [--named=<Str>] [--other-named=<Str>] [--option=<Option> (one two)]

The form built in to Raku still works, however:

$ raku SuperMAIN-test.raku --named=test_name --option=one
test_name

[nxadm]

I need to look a little deeper into this one, but It's certainly something to add to the tests.