From f19623b401f8793267cec6ab8633b2dcefaf984c Mon Sep 17 00:00:00 2001
From: Salvador Faria <salvador.mrf@gmail.com>
Date: Mon, 4 May 2015 22:00:32 -0400
Subject: [PATCH] Keep collapsible blocks open if there is any form error.

By default the collapsible blocks will be hidden after saving or from preview.
When there is a form error inside one of these blocks, the block is hidden and the user does not know where the form errors are located.
---
 wagtail/wagtailadmin/static/wagtailadmin/js/page-editor.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wagtail/wagtailadmin/static/wagtailadmin/js/page-editor.js b/wagtail/wagtailadmin/static/wagtailadmin/js/page-editor.js
index a054970c70..3e9c2d86b4 100644
--- a/wagtail/wagtailadmin/static/wagtailadmin/js/page-editor.js
+++ b/wagtail/wagtailadmin/static/wagtailadmin/js/page-editor.js
@@ -331,7 +331,7 @@ function initCollapsibleBlocks() {
     $('.object.multi-field.collapsible').each(function() {
         var $li = $(this);
         var $fieldset = $li.find('fieldset');
-        if ($li.hasClass('collapsed')) {
+        if ($li.hasClass('collapsed') && $li.find('.error-message').length == 0) {
             $fieldset.hide();
         }