$ git clone -n https://gitee.com/opencloudos-stream/f2c.git /var/lib/mock/dist-oc9-epol-build-80721-53835/root/chroot_tmpdir/scmroot/f2c
Cloning into '/var/lib/mock/dist-oc9-epol-build-80721-53835/root/chroot_tmpdir/scmroot/f2c'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/f2c
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d8a8c7 package init