$ git clone -n https://src.fedoraproject.org/rpms/python-ncclient.git /var/lib/mock/f42-build-side-1-3505148-45989/root/chroot_tmpdir/scmroot/python-ncclient
Cloning into '/var/lib/mock/f42-build-side-1-3505148-45989/root/chroot_tmpdir/scmroot/python-ncclient'...
$ git fetch origin bc370caf8ffb2b84900cb667bfa27efc9ffa08b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ncclient
 * [new ref]         bc370caf8ffb2b84900cb667bfa27efc9ffa08b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc370ca Update to 0.6.19 upstream release