$ git clone -n https://src.fedoraproject.org/rpms/python-numcodecs.git /var/lib/mock/f40-build-2135422-50815/root/chroot_tmpdir/scmroot/python-numcodecs
Cloning into '/var/lib/mock/f40-build-2135422-50815/root/chroot_tmpdir/scmroot/python-numcodecs'...
$ git fetch origin 19806e22edd0af832a58917c11c226c98ee86cff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-numcodecs
 * [new ref]         19806e22edd0af832a58917c11c226c98ee86cff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19806e2 Update to latest version (#2244738)