$ git clone -n https://gitee.com/opencloudos-stream/ghc-crypton-x509.git /var/lib/mock/dist-oc9-epol-build-109875-67535/root/chroot_tmpdir/scmroot/ghc-crypton-x509
Cloning into '/var/lib/mock/dist-oc9-epol-build-109875-67535/root/chroot_tmpdir/scmroot/ghc-crypton-x509'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-crypton-x509
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f40b70 update