#81193 by chx. Pass $edit to #process functions.

includes/form.inc

@@ -639,7 +639,7 @@ function form_builder($form_id, $form) {
   if (isset($form['#process']) && !$form['#processed']) {
     foreach ($form['#process'] as $process => $args) {
       if (function_exists($process)) {
-        $args = array_merge(array($form), $args);
+        $args = array_merge(array($form), array($edit), $args);
         $form = call_user_func_array($process, $args);
       }
     }