[1.2] backport of r10619 - fixed `sfBrowser::click` throw unexpected PHP error when trying to retrieve a value from an empty selectbox (with no option tags)
[1.2] backport of r10619 - fixed `sfBrowser::click` throw unexpected PHP error when trying to retrieve a value from an empty selectbox (with no option tags)

git-svn-id: 050357b0b8a113fbed8536228807c575cbccf8f1@10620 ee427ae8-e902-0410-961c-c3ed070cd9f9

WIZARDISHUNGRY/symfony,WIZARDISHUNGRY/symfony,WIZARDISHUNGRY/symfony