Fix the @total-entries number in the pagination element for select …

…box fields with the *allow multiple* option set

symphony/lib/toolkit/fields/field.select.php

@@ -79,6 +79,11 @@ public function allowDatasourceParamOutput(){
 			return true;
 		}
 
+		public function requiresSQLGrouping(){
+			// SQL grouping follows the opposite rule as toggling.
+			return !$this->canToggle();
+		}
+
 	/*-------------------------------------------------------------------------
 		Setup:
 	-------------------------------------------------------------------------*/