$ git clone -n https://gitee.com/wenyuzifang/libblockdev.git /var/lib/mock/dist-an23-build-469868-74027/root/chroot_tmpdir/scmroot/libblockdev
Cloning into '/var/lib/mock/dist-an23-build-469868-74027/root/chroot_tmpdir/scmroot/libblockdev'...
$ git fetch origin 5aceeb84cc3c9e45b8e9893b57231283c9cd24a4:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/libblockdev
 * [new ref]         5aceeb84cc3c9e45b8e9893b57231283c9cd24a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5aceeb8 Update code from upstream