Fix issue where landing page check was getting unset if edit theme, a=chris

diff --git a/src/views/elements/AppearanceElement.php b/src/views/elements/AppearanceElement.php
index e868deea6..947814841 100644
--- a/src/views/elements/AppearanceElement.php
+++ b/src/views/elements/AppearanceElement.php
@@ -228,6 +228,9 @@ class AppearanceElement extends Element
             C\CSRF_TOKEN."=".$data[C\CSRF_TOKEN];
         $this->view->helper("close")->render($appearance_url);
         $icon_helper = $this->view->helper('iconlink');
+        if ($data['LANDING_PAGE'] == true) {?>
+            <input type="hidden" name="LANDING_PAGE" value='true' /><?php
+        }
         ?>
         <div class="top-margin"><input type="hidden" name="edit_theme"
             value="true" /><label for="auxiliary-css-name"><?=