[bp/r51155][FIX]Oups, fixing 51143 (wrong checkbox) and writing more standard syntax (previous was working too in my tests and copied from other sites). Thanks jonnyb

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@51156 b456876b-0849-0410-b77d-98878d47e9d5