$ git clone -n https://gitee.com/mgb01105731/nginx.git /var/lib/mock/dist-an23-build-110614-45828/root/chroot_tmpdir/scmroot/nginx
Cloning into '/var/lib/mock/dist-an23-build-110614-45828/root/chroot_tmpdir/scmroot/nginx'...
$ git reset --hard origin/a23
HEAD is now at e84d265 replace pcre to pcre2