(try_window_id): When trying to locate cursor in

unchanged rows at the top, handle the case that we can't find it.

2 files changed, 5 insertions, 2 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 86f72ecda45..2ed91352645 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,8 @@
 2000-09-08  Gerd Moellmann  <gerd@gnu.org>
 
+        * xdisp.c (try_window_id): When trying to locate cursor in
+        unchanged rows at the top, handle the case that we can't find it.
+
         * xterm.c (x_draw_glyphs): Handle case START and END are out
         of bounds more carefully.
 
diff --git a/src/xdisp.c b/src/xdisp.c
index 351d710ea40..9d444c3ad6d 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -10601,8 +10601,8 @@ try_window_id (w)
           row = row_containing_pos (w, PT,
                                     MATRIX_FIRST_TEXT_ROW (w->current_matrix),
                                     last_unchanged_at_beg_row + 1);
-          xassert (row && row <= last_unchanged_at_beg_row);
-          set_cursor_from_row (w, row, w->current_matrix, 0, 0, 0, 0);
+          if (row)
+            set_cursor_from_row (w, row, w->current_matrix, 0, 0, 0, 0);
         }
 
       /* Start from first_unchanged_at_end_row looking for PT.  */