$ git clone -n https://src.fedoraproject.org/rpms/R-foreach.git /var/lib/mock/f45-build-6092-346/root/chroot_tmpdir/scmroot/R-foreach
Cloning into '/var/lib/mock/f45-build-6092-346/root/chroot_tmpdir/scmroot/R-foreach'...
$ git fetch origin bbdd404b54a1cd5e535ef2f8047953ed7b32992a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-foreach
 * [new ref]         bbdd404b54a1cd5e535ef2f8047953ed7b32992a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbdd404 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild