$ git clone -n https://gitee.com/wenyuzifang/oniguruma.git /var/lib/mock/dist-an23-build-469920-74027/root/chroot_tmpdir/scmroot/oniguruma
Cloning into '/var/lib/mock/dist-an23-build-469920-74027/root/chroot_tmpdir/scmroot/oniguruma'...
$ git fetch origin a72a029a214b1c174a1b3807ba0c13da1644334c:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/oniguruma
 * [new ref]         a72a029a214b1c174a1b3807ba0c13da1644334c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a72a029 Update code from upstream