Fix nasty bug that made it impossible get null values from the session. Note to future selves: always use array_key_exists() instead of isset() to check if a key-value is in an array.
Fix nasty bug that made it impossible get null values from the session. Note to future selves: always use array_key_exists() instead of isset() to check if a key-value is in an array.

svn commit r18285

silverorange/site,nburka/site,silverorange/site,nburka/site