WP-432 Available fields for custom template tag not displaying for all shortcodes
  Available listing attribute text is not displaying for all shortcode template
  types that allow either 'custom' or 'if' template tags.
WP-432

Display correct group for search_form shortcodes, previously 'cur_data' and 'uncur_data' were displaying but when using a search_form the group should be 'metadata'.
WP-432

Revert to switch statement.