$ git clone -n https://gitee.com/opencloudos-stream/mingw-expat.git /var/lib/mock/dist-oc9-epol-build-83485-57176/root/chroot_tmpdir/scmroot/mingw-expat
Cloning into '/var/lib/mock/dist-oc9-epol-build-83485-57176/root/chroot_tmpdir/scmroot/mingw-expat'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mingw-expat
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6bb076 package init