doing 'use Test' and then augmenting class Any with an exported method doesn't make that method visible in the GLOBAL namespace in Rakudo

gistfile1.txt

$ cat t/01-basic.t
use Test; # remove this line, and it works
use MONKEY_TYPING;

augment class Any {
    method foo is export { say "OH HAI" };
}

foo([])

$ perl6 t/01-basic.t
Could not find sub &foo
  in main program body at line 8:t/01-basic.t