Save the stv value to return within the protected reagion
Save the stv value to return within the protected reagion

commit c457b965383087714e3afcce60a763fbec295bb1 was incomplete

This should fix #2128 for good

gquintard/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache