$ git clone -n https://src.fedoraproject.org/rpms/projecteur.git /var/lib/mock/f45-build-28914-634/root/chroot_tmpdir/scmroot/projecteur
Cloning into '/var/lib/mock/f45-build-28914-634/root/chroot_tmpdir/scmroot/projecteur'...
$ git fetch origin 429a45af78e6748330fb1535a61d7530b0258220:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/projecteur
 * [new ref]         429a45af78e6748330fb1535a61d7530b0258220 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 429a45a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild