$ git clone -n https://src.fedoraproject.org/rpms/reprepro.git /var/lib/mock/f45-build-34469-687/root/chroot_tmpdir/scmroot/reprepro
Cloning into '/var/lib/mock/f45-build-34469-687/root/chroot_tmpdir/scmroot/reprepro'...
$ git fetch origin 972a8d92076a3dbd23fce0ce17f89fb4514b19fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/reprepro
 * [new ref]         972a8d92076a3dbd23fce0ce17f89fb4514b19fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 972a8d9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild