Suggestion.pl has an event listener that is listening to all buttons of the type submit, which requires the user to select at least one suggestion on the page.  This prevents other buttons of a submit type that have nothing to do with that particular form from being added to the page and working without this same restriction.

$("button[type='submit']").on("click", function(e) {
                    var submit_button = this;
                    var form = $(submit_button).parents("form");
                    var action = $(submit_button).val();
                    var selected_suggestions = $(form).find("input[name='suggestionid']:checked");
                    if ( selected_suggestions.length == 0 ) {
                        alert(_("Please select at least one suggestion"));
                        e.preventDefault();
                        return false;
                    }

needs to be rewritten so that it is limited to the 4 buttons at the bottom of the page only.