we end up with the iterator placed at where it thinks X is 0,
while the end position is really at some X > 0, the same X that
PT had. */
- reseat_at_previous_visible_line_start (&it);
- it.current_x = it.hpos = 0;
- move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS);
- it.vpos = 0;
+ if (XINT (lines) < 0)
+ {
+ reseat_at_previous_visible_line_start (&it);
+ it.current_x = it.hpos = 0;
+ move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS);
+ it.vpos = 0;
+ }
+ else
+ move_it_by_lines (&it, 0, 0);
if (XINT (lines) != 0)
move_it_by_lines (&it, XINT (lines), 0);