$ git clone -n https://src.fedoraproject.org/rpms/rb_libtorrent.git /var/lib/mock/f31-build-62441-29078/root/chroot_tmpdir/scmroot/rb_libtorrent
Cloning into '/var/lib/mock/f31-build-62441-29078/root/chroot_tmpdir/scmroot/rb_libtorrent'...
$ git reset --hard b81d7dd1e29803b2cdcb60b9a8c3176494c67dbd
HEAD is now at b81d7dd Drop python 2 bindings in F31+