According to my testing this is now resolved with the recent updates
to blead,
===================================================================
commit d74adc6a1d9383142243c7a8afde44878b9452f1
Author: Chris Williams <chris@bingosnet.co.uk>
Date: Fri Oct 23 12:33:09 2009 +0100
Updated CPANPLUS to cpan version 0.89_04
Changes for 0.89_04 Fri Oct 23 11:12:57 2009
================================================
* Added deprecated dual-life module support which
requires newer versions of Module::CoreList and
Module::Load::Conditional
commit 1823d11bd0507e10ace531e59b0e992b16466120
Author: Chris Williams <chris@bingosnet.co.uk>
Date: Fri Oct 23 12:30:26 2009 +0100
Updated Module::Load::Conditional to cpan version 0.31_01
Changes for 0.31_01 Fri Oct 23 09:47:12 BST 2009
=================================================
* Added DEPRECATED and support for determining if
a core module is loaded from perl lib path and
setting uptodate accordingly.
======================================================================
Cheers.