Item12466: reverted to check for mapped value in +values in form HTML

git-svn-id: http://svn.foswiki.org/trunk@16675 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12466: A_VALUE needs to expand to mapped value

git-svn-id: http://svn.foswiki.org/trunk@16678 0b4bb1d4-4e5a-0410-9cc4-b2b747904278