$ git clone -n https://src.fedoraproject.org/rpms/git2cl.git /var/lib/mock/f45-build-11090-427/root/chroot_tmpdir/scmroot/git2cl
Cloning into '/var/lib/mock/f45-build-11090-427/root/chroot_tmpdir/scmroot/git2cl'...
$ git fetch origin d4b144f8218e4fba9f3e06c9742783e40a4f8c5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/git2cl
 * [new ref]         d4b144f8218e4fba9f3e06c9742783e40a4f8c5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4b144f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild