From 5a7f5967e74f662031205600296e560302706966 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Thu, 24 Jan 2019 14:09:55 -0500
Subject: [PATCH] Don't set readonly globally

---
 autoload/fugitive.vim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index 63fec0a..6845f0a 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -1661,7 +1661,7 @@ function! fugitive#BufReadCmd(...) abort
         let error = b:fugitive_type
         unlet b:fugitive_type
         if rev =~# '^:\d:'
-          let &readonly = !filewritable(dir . '/index')
+          let &l:readonly = !filewritable(dir . '/index')
           return 'silent doautocmd BufNewFile'
         else
           setlocal readonly nomodifiable
@@ -1731,7 +1731,7 @@ function! fugitive#BufReadCmd(...) abort
       keepjumps call setpos('.',pos)
       setlocal nomodified noswapfile
       let modifiable = rev =~# '^:.:' && b:fugitive_type !=# 'tree'
-      let &readonly = !modifiable || !filewritable(dir . '/index')
+      let &l:readonly = !modifiable || !filewritable(dir . '/index')
       if &bufhidden ==# ''
         setlocal bufhidden=delete
       endif