From 4cc6097ecb18b52c023a9487c2cf3220290ba0a1 Mon Sep 17 00:00:00 2001
From: lifecrisis <15251574+lifecrisis@users.noreply.github.com>
Date: Wed, 6 May 2020 23:24:01 -0400
Subject: [PATCH] Do not consider the tree root to be "cascadable" (#1120)

* Do not consider the tree root to be "cascadable"

* Update "CHANGELOG.md"
---
 CHANGELOG.md                   | 1 +
 lib/nerdtree/tree_dir_node.vim | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2e1d430..0bcf4d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
         - **.PATCH**: Pull Request Title (PR Author) [PR Number](Link to PR)
 -->
 #### 6.7
+- **.10**: Do not consider the tree root to be "cascadable". (lifecrisis) [#1120](https://github.com/preservim/nerdtree/pull/1120)
 - **.9**: Force `:NERDTreeFocus` to allow events to be fired when switching windows. (PhilRunninger) [#1118](https://github.com/preservim/nerdtree/pull/1118)
 - **.8**: Fix example code for the `NERDTreeAddKeyMap()` function. (PhilRunninger) [#1116](https://github.com/preservim/nerdtree/pull/1116)
 - **.7**: Put `'%'` argument in `bufname()` for backwards compatibility. (PhilRunninger) [#1105](https://github.com/preservim/nerdtree/pull/1105)
diff --git a/lib/nerdtree/tree_dir_node.vim b/lib/nerdtree/tree_dir_node.vim
index 88ac319..14d2996 100644
--- a/lib/nerdtree/tree_dir_node.vim
+++ b/lib/nerdtree/tree_dir_node.vim
@@ -377,11 +377,17 @@ endfunction
 "  1. If cascaded, we don't know which dir is bookmarked or is a symlink.
 "  2. If the parent is a symlink or is bookmarked, you end up with unparsable
 "     text, and NERDTree cannot get the path of any child node.
+" Also, return false if this directory is the tree root, which should never be
+" part of a cascade.
 function! s:TreeDirNode.isCascadable()
     if g:NERDTreeCascadeSingleChildDir ==# 0
         return 0
     endif
 
+    if self.isRoot()
+        return 0
+    endif
+
     if self.path.isSymLink
         return 0
     endif