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patch 9.1.1393: missing test for switching buffers and reusing curbuf

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Problem:  The check in buf_freeall that restores curwin subtly prevents
          leaving an unloaded buffer in a window when reusing curbuf, if
          autocommands switch to a different buffer.
Solution: Add a test case that covers this. Also ensure splitting isn't
          possible, as that could do the same (Sean Dewar)

closes: #17325

Signed-off-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Sean Dewar
2025-05-15 19:59:37 +02:00
committed by Christian Brabandt
parent c49cb93a86
commit 31be82e66d
3 changed files with 30 additions and 1 deletions
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2
src/buffer.c
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@@ -909,7 +909,7 @@ buf_freeall(buf_T *buf, int flags)
// If the buffer was in curwin and the window has changed, go back to that
// window, if it still exists. This avoids that ":edit x" triggering a
// "tabnext" BufUnload autocmd leaves a window behind without a buffer.
if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin))
if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin))
{
block_autocmds();
goto_tabpage_win(the_curtab, the_curwin);