fix for #1239192 and #1239128. Special thanks to mjpa

clientside_validation.js

@@ -5,6 +5,9 @@
         Drupal.myClientsideValidation = new Drupal.clientsideValidation();
       }
       else {
+        // Update the settings
+        Drupal.myClientsideValidation.data = Drupal.settings.clientsideValidation;
+        Drupal.myClientsideValidation.forms = Drupal.myClientsideValidation.data['forms'];
         Drupal.myClientsideValidation.bindForms();
       }
     }
@@ -138,10 +141,10 @@
           }
         };
 
-        if (!Drupal.settings.clientsideValidation.forms[f].includeHidden) {
+        if (!self.forms[f].includeHidden) {
           validate_options.ignore = ':input:hidden';
         }
-        if(Drupal.settings.clientsideValidation.general.validateTabs) {
+        if(self.data.general.validateTabs) {
           validate_options.ignore += ' :not(.vertical-tabs-pane:input)';
         }
         self.validators[f] = $('#' + f).validate(validate_options);

clientside_validation.module

@@ -235,6 +235,11 @@ function clientside_validation_webform_after_build(&$form, &$form_state) {
  */
 function clientside_validation_form_after_build(&$form, &$form_state) {
   static $js_rules = array();
+  static $form_ids = array();
+  if (isset($form_ids[$form['#id']])) {
+    return $form;
+  }
+
   drupal_alter("clientside_validation_form", $form, $form_state, $js_rules);
   if (!empty($js_rules)) {
     $settings['clientsideValidation']['general'] = array(
@@ -270,6 +275,7 @@ function clientside_validation_form_after_build(&$form, &$form_state) {
     }
     drupal_add_js(drupal_get_path('module', 'clientside_validation') . '/clientside_validation.js');
     drupal_add_js($settings, 'setting');
+    $form_ids[$form['#id']] = TRUE;
   }
 
   return $form;

clientside_validation_form/clientside_validation_form.module

@@ -15,7 +15,7 @@ function clientside_validation_form_after_build_recurse($form_id, &$form, &$form
     foreach ($children as $index => $item) {
       $element = &$form[$item];
       $types = array(
-        'textfield', 'textarea', 'select', 'radio', 'checkbox', 'password', 'file', 'radios', 'checkboxes',
+        'textfield', 'textarea', 'select', 'radio', 'checkbox', 'password', 'managed_file', 'file', 'radios', 'checkboxes',
       );
       if (isset($element['#type']) && in_array($element['#type'], $types)) {
         clientside_validation_regular($form_id, $element, $js_rules);
@@ -42,6 +42,11 @@ function clientside_validation_regular($form_id, $element, &$js_rules) {
       case 'password':
       case 'textarea':
       case 'file':
+      case 'managed_file':
+        if ($element['#type'] == 'managed_file') {
+          $el_name = $element['upload']['#name'];
+        }
+
         if ($is_multiple) {
           // Only first field is required
           if (!isset($multiples[$form_id][$el_name])) {
@@ -84,4 +89,4 @@ function clientside_validation_regular($form_id, $element, &$js_rules) {
         break;
     }
   }
-}
\ No newline at end of file
+}