justinfrench/formtastic — pull request #723 by jnimety (2011-10-20 18:46:01+00:00)
Title: memoize the selected values array

As far as i can tell we can memoize the selected_values output so we're not recalculating for each member of the collection. This is my first time looking into the Formtastic source, so please let me know if there's a use case this would break.