$ git clone -n https://gitee.com/opencloudos-stream/metapixel.git /var/lib/mock/dist-oc9-epol-build-90088-58595/root/chroot_tmpdir/scmroot/metapixel
Cloning into '/var/lib/mock/dist-oc9-epol-build-90088-58595/root/chroot_tmpdir/scmroot/metapixel'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/metapixel
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b58a9c2 !1 Init package Merge pull request !1 from 陈晨/master