1 files changed, 4 insertions, 0 deletions

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