From 6f6501735cbfc2182e807da8ab2a3ffc04a20597 Mon Sep 17 00:00:00 2001
From: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Sun, 31 May 2026 16:51:32 -0700
Subject: [PATCH] Reset the winfixheight option when a quickfix buffer is
 deleted from a window

---
 src/buffer.c                  |  5 +++++
 src/testdir/test_quickfix.vim | 16 ++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/src/buffer.c b/src/buffer.c
index 07176fbc434ac8..d28718329318f3 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -736,6 +736,11 @@ close_buffer(
 	unblock_autocmds();
     }
 
+    // When a quickfix buffer is deleted from a window, clear the
+    // 'winfixheight' option.
+    if (bt_quickfix(buf) && win_valid && win->w_buffer == buf)
+	win->w_p_wfh = FALSE;
+
     // Remember if the buffer may be hidden soon, or is already hidden.
     hiding_buf = buf->b_nwindows <= 0 || ((win_valid || closed_popup)
 	    && win->w_buffer == buf && buf->b_nwindows == 1);
diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index c656d205f029eb..b0c4475ccd383e 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -7090,4 +7090,20 @@ func Test_set_qftf_in_sandbox()
   call Xtest_set_qftf_in_sandbox('l')
 endfunc
 
+" Test for the 'statusline' height remaining at one when the quickfix buffer
+" is wiped out when quickfix window is the only window open.
+func Test_qf_statusline_height()
+  %bw!
+  copen
+  wincmd p
+  let prev_wh = winheight('.')
+  wincmd p
+  only
+  bw!
+  copen
+  wincmd p
+  call assert_equal(prev_wh, winheight('.'))
+  %bw!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab