Nginx work with http_ssl_module problem

I have two https websites work in Nginx with http_ssl_module,
After I modification the Nginx.conf, then I execute Nginx -s reload.
I tail the nginx log, I find the nginx still work with the old
this mean Nginx reload can’t work with http_ssl_module,
I just tty nginx 0.7.61 and nginx 0.7.67,and I tested the nginx without
http_ssl_module, the Nginx reload worked well.

                               thank you for develop nginx for us.