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-rw-r--r--src/window.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/window.c b/src/window.c
index 8d1aed46dff..d3c72570dd1 100644
--- a/src/window.c
+++ b/src/window.c
@@ -5652,12 +5652,17 @@ scroll_command (Lisp_Object window, Lisp_Object n, int direction)
w = XWINDOW (window);
other_window = ! EQ (window, selected_window);
- /* If given window's buffer isn't current, make it current for
- the moment. But don't screw up if window_scroll gets an error. */
+ /* If given window's buffer isn't current, make it current for the
+ moment. If the window's buffer is the same, but it is not the
+ selected window, we need to save-excursion to avoid affecting
+ point in the selected window (which would cause the selected
+ window to scroll). Don't screw up if window_scroll gets an
+ error. */
if (other_window || XBUFFER (w->contents) != current_buffer)
{
record_unwind_protect_excursion ();
- Fset_buffer (w->contents);
+ if (XBUFFER (w->contents) != current_buffer)
+ Fset_buffer (w->contents);
}
if (other_window)