From @grondilu

$ perl6 --version
This is perl6 version 2014.08-314-g2b7e232 built on MoarVM version
2014.08-108-g93d47dd

$ perl6 -e 'role Foo {}; say $_ ~~ Foo for pi but Foo, [pi] but Foo;'
True
False

From @jnthn

On Wed Sep 10 18​:01​:50 2014, grondilu@​yahoo.fr wrote​:

$ perl6 --version
This is perl6 version 2014.08-314-g2b7e232 built on MoarVM version
2014.08-108-g93d47dd

$ perl6 -e 'role Foo {}; say $_ ~~ Foo for pi but Foo, [pi] but Foo;'
True
False

Seems this was fixed a while ago, probably during the last round of parametrics work. Added a test to cover it in S14-roles/mixin.t.

The RT System itself - Status changed from 'new' to 'open'

@jnthn - Status changed from 'open' to 'resolved'