From bc76afd355c0a6608830e2b43c8c67243aa0fa7b Mon Sep 17 00:00:00 2001
From: Eli Zaretskii <eliz@gnu.org>
Date: Sat, 7 Nov 2020 10:44:30 +0200
Subject: [PATCH] ; * src/xdisp.c (redisplay_window): Add comment for a recent
 change.

---
 src/xdisp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/xdisp.c b/src/xdisp.c
index bff14e584de..0001bcd98d2 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -18820,6 +18820,10 @@ redisplay_window (Lisp_Object window, bool just_this_one_p)
 
   /* Try to scroll by specified few lines.  */
   if ((0 < scroll_conservatively
+       /* FIXME: the option is supposed to affect minibuffers, but we
+	  test MINI_WINDOW_P, which can also catch uses of
+	  mini-windows for displaying the echo area.  Do we need to
+	  distinguish these two use cases?  */
        || (scroll_minibuffer_conservatively && MINI_WINDOW_P (w))
        || 0 < emacs_scroll_step
        || temp_scroll_step
-- 
2.39.2