The proposed change to the source package format at http://lists.debian.org/debian-dpkg/2009/10/msg00154.html would fix this one as well:
Whatever HEAD points to at the time of the source package creation is stored in the bundle, and when dpkg-source calls ‘git clone PKG_VER.git-bundle PKG-VER’, Git automatically does a checkout of HEAD. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org