$ git clone -n https://gitee.com/opencloudos-stream/nss.git /var/lib/mock/dist-rebuild-after-rpm-check-build-180015-11674/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-rebuild-after-rpm-check-build-180015-11674/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/nss
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91dbeda !4 Set update-crypto-policies requires as posttrans dependency Merge pull request !4 from kianli/master