From c4b551e73d15390bc7a112b1aa2f7397dea4e04b Mon Sep 17 00:00:00 2001
From: ichizok <gclient.gaap@gmail.com>
Date: Sat, 5 Jul 2025 01:34:21 +0900
Subject: [PATCH] runtime(go): fix `b:undo_ftplugin`

last `unmap` can cause the error "E31: No such mapping" when
`doaudocmd FileType go` if appending other commands to `b:undo_ftplugin` i.e.
the space and the next bar as `let b:undo_ftplugin .= ' | setl ...'`.
---
 runtime/ftplugin/go.vim | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/runtime/ftplugin/go.vim b/runtime/ftplugin/go.vim
index e3f947c091..d174fd7182 100644
--- a/runtime/ftplugin/go.vim
+++ b/runtime/ftplugin/go.vim
@@ -56,10 +56,10 @@ if !exists("no_plugin_maps") && !exists("no_go_maps")
   noremap <silent> <buffer> [[ <Cmd>call <SID>GoFindSection('prev_start', v:count1)<CR>
   noremap <silent> <buffer> [] <Cmd>call <SID>GoFindSection('prev_end', v:count1)<CR>
   let b:undo_ftplugin .= ''
-                      \ . '| unmap <buffer> ]]'
-                      \ . '| unmap <buffer> ]['
-                      \ . '| unmap <buffer> [['
-                      \ . '| unmap <buffer> []'
+                      \ . "| silent! exe 'unmap <buffer> ]]'"
+                      \ . "| silent! exe 'unmap <buffer> ]['"
+                      \ . "| silent! exe 'unmap <buffer> [['"
+                      \ . "| silent! exe 'unmap <buffer> []'"
 endif
 
 function! <SID>GoFindSection(dir, count)