$ git clone -n https://gitee.com/opencloudos-stream/cobbler.git /var/lib/mock/dist-oc9-epol-build-119599-70667/root/chroot_tmpdir/scmroot/cobbler
Cloning into '/var/lib/mock/dist-oc9-epol-build-119599-70667/root/chroot_tmpdir/scmroot/cobbler'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/cobbler
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84efc47 !2 fix "cannot access '/var/lib/cobbler/web.ss'" Merge pull request !2 from jiaxinyyang/master