$ git clone -n https://gitee.com/opencloudos-stream/mingw-boost.git /var/lib/mock/dist-oc9-epol-build-83478-57176/root/chroot_tmpdir/scmroot/mingw-boost
Cloning into '/var/lib/mock/dist-oc9-epol-build-83478-57176/root/chroot_tmpdir/scmroot/mingw-boost'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mingw-boost
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c80a308 package init