+2012-04-09 Eli Zaretskii <eliz@gnu.org>
+
+ * xdisp.c (find_last_unchanged_at_beg_row): Don't consider a row
+ "unchanged" if its end.pos is beyond ZV. (Bug#11199)
+
2012-04-09 Jan Djärv <jan.h.d@swipnet.se>
* nsterm.m (constrainFrameRect): Always constrain when there is only
continued. */
&& !(MATRIX_ROW_END_CHARPOS (row) == first_changed_pos
&& (row->continued_p
- || row->exact_window_width_line_p)))
+ || row->exact_window_width_line_p))
+ /* If ROW->end is beyond ZV, then ROW->end is outdated and
+ needs to be recomputed, so don't consider this row as
+ unchanged. This happens when the last line was
+ bidi-reordered and was killed immediately before this
+ redisplay cycle. In that case, ROW->end stores the
+ buffer position of the first visual-order character of
+ the next row, which is now beyond ZV. */
+ && CHARPOS (row->end.pos) <= ZV)
row_found = row;
/* Stop if last visible row. */