$ git clone -n https://src.fedoraproject.org/rpms/ibus-chewing.git /var/lib/mock/f41-build-846126-162967/root/chroot_tmpdir/scmroot/ibus-chewing
Cloning into '/var/lib/mock/f41-build-846126-162967/root/chroot_tmpdir/scmroot/ibus-chewing'...
$ git fetch origin 8ab6deb74ef5c8ef0def61303d54745bf1b41583:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ibus-chewing
 * [new ref]         8ab6deb74ef5c8ef0def61303d54745bf1b41583 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ab6deb Update to 2.1.1