$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-NamespaceFactory.git /var/lib/mock/f45-build-27493-624/root/chroot_tmpdir/scmroot/perl-XML-NamespaceFactory
Cloning into '/var/lib/mock/f45-build-27493-624/root/chroot_tmpdir/scmroot/perl-XML-NamespaceFactory'...
$ git fetch origin e6f65a0582740b9dffceb4798bba795e2d91a7c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-NamespaceFactory
 * [new ref]         e6f65a0582740b9dffceb4798bba795e2d91a7c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6f65a0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild