$ git clone -n https://src.fedoraproject.org/rpms/python-ruamel-yaml.git /var/lib/mock/f39-build-1735735-41258/root/chroot_tmpdir/scmroot/python-ruamel-yaml
Cloning into '/var/lib/mock/f39-build-1735735-41258/root/chroot_tmpdir/scmroot/python-ruamel-yaml'...
$ git fetch origin ed9b5461524d0a7029e67ed7c1f774ab785b116b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ruamel-yaml
 * [new ref]         ed9b5461524d0a7029e67ed7c1f774ab785b116b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed9b546 Update to 0.18.2 (close RHBZ#2245968)