From @markjreed

use MONKEY_TYPING;
role Bar { has $.counter; }
class Pub does Bar { has $.saloon; }
augment class Pub { has $.snug; }

===SORRY!===
Attribute '$!counter' already exists in the class, but a role also
wishes to compose it

This is Rakudo Perl 6, version 2010.06-295-gcf3da00 built on parrot 2.5.0 r48114

--
Mark J. Reed <markjreed@​gmail.com>

From @coke

On Tue Jul 20 10​:06​:14 2010, markjreed wrote​:

use MONKEY_TYPING;
role Bar { has $.counter; }
class Pub does Bar { has $.saloon; }
augment class Pub { has $.snug; }

===SORRY!===
Attribute '$!counter' already exists in the class, but a role also
wishes to compose it

This is Rakudo Perl 6, version 2010.06-295-gcf3da00 built on parrot
2.5.0 r48114

This no longer appears to be the case, this code now completes with no
error.

Needs tests.
--
Will "Coke" Coleda

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

From @moritz

now tested in t/spec/S12-class/augment-supersede.t

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