$ git clone -n https://src.fedoraproject.org/rpms/rb_libtorrent.git /var/lib/mock/f41-build-side-2-python-2699849-30377/root/chroot_tmpdir/scmroot/rb_libtorrent
Cloning into '/var/lib/mock/f41-build-side-2-python-2699849-30377/root/chroot_tmpdir/scmroot/rb_libtorrent'...
$ git fetch origin a3176527300830994ca0eab9253e374329af06d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rb_libtorrent
 * [new ref]         a3176527300830994ca0eab9253e374329af06d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a317652 convert Boost license to SPDX