$ git clone -n https://src.fedoraproject.org/rpms/R-lifecycle.git /var/lib/mock/f45-build-6206-347/root/chroot_tmpdir/scmroot/R-lifecycle
Cloning into '/var/lib/mock/f45-build-6206-347/root/chroot_tmpdir/scmroot/R-lifecycle'...
$ git fetch origin dc160f24ea1d6c9447bdcf490b11ec21a77a1654:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lifecycle
 * [new ref]         dc160f24ea1d6c9447bdcf490b11ec21a77a1654 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc160f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild