$ git clone -n https://gitee.com/wency_cn/abseil-cpp.git /var/lib/mock/dist-an23-build-491975-74553/root/chroot_tmpdir/scmroot/abseil-cpp
Cloning into '/var/lib/mock/dist-an23-build-491975-74553/root/chroot_tmpdir/scmroot/abseil-cpp'...
$ git fetch origin c4f78e7cba1e0f94b30ede54c9e759a3f865dad5:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/abseil-cpp
 * [new ref]         c4f78e7cba1e0f94b30ede54c9e759a3f865dad5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4f78e7 Update code from upstream