$ git clone -n https://gitee.com/happy_orange/nss.git /var/lib/mock/dist-an23-build-140848-53403/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-an23-build-140848-53403/root/chroot_tmpdir/scmroot/nss'...
$ git reset --hard origin/a23
HEAD is now at 8224079 add doc package and add api.