From f2133ca50b036c4d1e24b616fdec63cd1fb1d33e Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Sun, 17 Sep 2023 19:03:44 -0400
Subject: [PATCH] Expire cached blank Git dir on active Fugitive invocation

Resolves: https://github.com/tpope/vim-fugitive/issues/2213
---
 autoload/fugitive.vim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index ff5663a..2efeccb 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -116,6 +116,9 @@ function! s:VersionCheck() abort
   elseif !fugitive#GitVersion(1, 8, 5)
     return 'return ' . string('echoerr "fugitive: Git 1.8.5 or newer required"')
   else
+    if exists('b:git_dir') && empty(b:git_dir)
+      unlet! b:git_dir
+    endif
     return ''
   endif
 endfunction