From 776aeef26f375cbf788942ebda92c74e818ce880 Mon Sep 17 00:00:00 2001
From: Martin Grenfell <martin_grenfell@msn.com>
Date: Sun, 8 Jun 2008 20:53:43 +1200
Subject: [PATCH] bugfix for oTreeFileNode#MakeRoot()

if MakeRoot is called for a file, make sure that the nodes parent is
initialized
---
 plugin/NERD_tree.vim | 1 +
 1 file changed, 1 insertion(+)

diff --git a/plugin/NERD_tree.vim b/plugin/NERD_tree.vim
index 0f172f0..e05c39a 100644
--- a/plugin/NERD_tree.vim
+++ b/plugin/NERD_tree.vim
@@ -308,6 +308,7 @@ function! s:oTreeFileNode.MakeRoot() dict
     if self.path.isDirectory
         let t:NERDTreeRoot = self
     else
+        call self.CacheParent()
         let t:NERDTreeRoot = self.parent
     endif