[perl #126551] [BUG] Segfault on EXPORT returning Hash in weird circumstance

[via RT]

# New Ticket Created by  Lloyd Fournier 
# Please include the string:  [perl #126551]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=126551 >


# Exporter1.pm
multi foo { }

sub EXPORT {
    Hash.new('&foo' => &foo) #Map.new doesn't cause it.
}
---
# Exporter2.pm
multi foo is export { }
---
# main.pl
use Exporter1;
use Exporter2;

#! Segmentation fault

confirmed on both debian and OS X with:

 2015.10-145-g9979bf2 built on MoarVM version 2015.10-42-g73c0269