From @gfldex

$ perl6

sub a(%p1?){ %p1<a> = 1 };a();
Null PMC access in invoke()

--
Nobody knows the age of the human race, but everybody agrees that it is
old enough to know better.
  -- Anonymous

@coke - Status changed from 'new' to 'open'

From @coke

On Mon Jul 26 05​:51​:17 2010, wenzel.peppmeyer@​gmx.de wrote​:

$ perl6

sub a(%p1?){ %p1<a> = 1 };a();
Null PMC access in invoke()

$ ./perl6 -e 'sub a(%p1?){ %p1<a> = 1 };a(); say "alive"'
alive

Closable with tests.

--
Will "Coke" Coleda

From @moritz

now tested in t/spec/S06-signature/optional.t.

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