From 07beafc679049108fed5f4261ce2cc1a67a72c8e Mon Sep 17 00:00:00 2001
From: Flavio Copes <copesc@gmail.com>
Date: Fri, 22 Jul 2016 17:21:02 +0200
Subject: [PATCH] If no parent is set and I call a siblings collection, return
 a new collection

Fix for a plugins combination issue detailed in
https://github.com/getgrav/grav-plugin-sitemap/issues/22
---
 system/src/Grav/Common/Page/Page.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/system/src/Grav/Common/Page/Page.php b/system/src/Grav/Common/Page/Page.php
index b3679bbdb..abb421078 100644
--- a/system/src/Grav/Common/Page/Page.php
+++ b/system/src/Grav/Common/Page/Page.php
@@ -2337,6 +2337,9 @@ class Page
                             $results = $collection->addPage($this->parent());
                             break;
                         case 'siblings':
+                            if (!$this->parent()) {
+                                return new Collection();
+                            }
                             $results = $this->parent()->children()->remove($this->path());
                             break;
                         case 'descendants':