$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-Parser-Lite.git /var/lib/mock/f45-build-27501-624/root/chroot_tmpdir/scmroot/perl-XML-Parser-Lite
Cloning into '/var/lib/mock/f45-build-27501-624/root/chroot_tmpdir/scmroot/perl-XML-Parser-Lite'...
$ git fetch origin 754b4d88a4bfb1ec56e73b196d5838eaa4cfc92f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-Parser-Lite
 * [new ref]         754b4d88a4bfb1ec56e73b196d5838eaa4cfc92f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 754b4d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild