Fix bug #11720 with cursor positioning in outline-mode and Org buffers.

 src/xdisp.c (set_cursor_from_row): Use the leftmost glyph as GLYPH_BEFORE, not
 the rightmost.

src/ChangeLog

@@ -6,6 +6,8 @@
 	row.
 	(handle_face_prop): Use chunk-relative overlay string index when
 	indexing into it->string_overlays array.  (Bug#11653)
+	(set_cursor_from_row): Use the leftmost glyph as GLYPH_BEFORE, not
+	the rightmost.  (Bug#11720)
 
 2012-06-16  Andreas Schwab  <schwab@linux-m68k.org>
 

src/xdisp.c

@@ -13937,16 +13937,13 @@ set_cursor_from_row (struct window *w, struct glyph_row *row,
 		    break;
 		  }
 		/* See if we've found a better approximation to
-		   POS_BEFORE or to POS_AFTER.  Note that we want the
-		   first (leftmost) glyph of all those that are the
-		   closest from below, and the last (rightmost) of all
-		   those from above.  */
+		   POS_BEFORE or to POS_AFTER.  */
 		if (0 > dpos && dpos > pos_before - pt_old)
 		  {
 		    pos_before = glyph->charpos;
 		    glyph_before = glyph;
 		  }
-		else if (0 < dpos && dpos <= pos_after - pt_old)
+		else if (0 < dpos && dpos < pos_after - pt_old)
 		  {
 		    pos_after = glyph->charpos;
 		    glyph_after = glyph;
@@ -14030,7 +14027,7 @@ set_cursor_from_row (struct window *w, struct glyph_row *row,
 		    pos_before = glyph->charpos;
 		    glyph_before = glyph;
 		  }
-		else if (0 < dpos && dpos <= pos_after - pt_old)
+		else if (0 < dpos && dpos < pos_after - pt_old)
 		  {
 		    pos_after = glyph->charpos;
 		    glyph_after = glyph;