From e3b1af604ceb1cef8525be8ceb4f030ff09fe361 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Tue, 17 Jul 2018 01:42:37 -0400
Subject: [PATCH] Work around bad b:git_dir from ftplugin/git.vim

---
 plugin/fugitive.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 4abb3ac..a916c9e 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -110,7 +110,7 @@ function! FugitiveExtractGitDir(path) abort
 endfunction
 
 function! FugitiveDetect(path) abort
-  if exists('b:git_dir') && (b:git_dir ==# '' || b:git_dir =~# '/$')
+  if exists('b:git_dir') && b:git_dir =~# '^$\|/$\|^fugitive:'
     unlet b:git_dir
   endif
   if !exists('b:git_dir')