vim-patch:9.1.0033: Insert mode not stopped if closing prompt buffer modifies hidden buffer (#27051)

Problem:  Insert mode not stopped if an autocommand modifies a hidden
          buffer while closing a prompt buffer.
Solution: Don't set b_prompt_insert if stop_insert_mode is already set.
          (zeertzjq)

closes: vim/vim#13872

https://github.com/vim/vim/commit/96958366ad6159efe708b694055320ed19357e61

1 files changed, 32 insertions, 0 deletions

diff --git a/test/old/testdir/test_prompt_buffer.vim b/test/old/testdir/test_prompt_buffer.vim
index 3dfbbcece6..20daa07a3d 100644
--- a/test/old/testdir/test_prompt_buffer.vim
+++ b/test/old/testdir/test_prompt_buffer.vim
@@ -298,4 +298,36 @@ func Test_prompt_appending_while_hidden()
   call StopVimInTerminal(buf)
 endfunc
 
+" Modifying a hidden buffer while closing a prompt buffer should not prevent
+" stopping of Insert mode.
+func Test_prompt_close_modify_hidden()
+  call CanTestPromptBuffer()
+
+  let script =<< trim END
+      file hidden
+      set bufhidden=hide
+      enew
+      new prompt
+      set buftype=prompt
+
+      inoremap <buffer> q <Cmd>bwipe!<CR>
+      autocmd BufWinLeave prompt call setbufline('hidden', 1, 'Test')
+  END
+  call writefile(script, 'XpromptCloseModifyHidden', 'D')
+
+  let buf = RunVimInTerminal('-S XpromptCloseModifyHidden', {'rows': 10})
+  call TermWait(buf)
+
+  call term_sendkeys(buf, "a")
+  call WaitForAssert({-> assert_match('-- INSERT --', term_getline(buf, 10))})
+
+  call term_sendkeys(buf, "q")
+  call WaitForAssert({-> assert_notmatch('-- INSERT --', term_getline(buf, 10))})
+
+  call term_sendkeys(buf, ":bwipe!\<CR>")
+  call WaitForAssert({-> assert_equal('Test', term_getline(buf, 1))})
+
+  call StopVimInTerminal(buf)
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab