@@ -1342,8 +1342,17 @@ fn copy_selection_on_line(cx: &mut Context, direction: Direction) {
13421342 let mut primary_index = 0;
13431343 for range in selection.iter() {
13441344 let is_primary = *range == selection.primary();
1345− let head_pos = coords_at_pos(text, range.head);
1345+
1346+ // The range is always head exclusive
1347+ let head = if range.anchor < range.head {
1348+ range.head - 1
1349+ } else {
1350+ range.head
1351+ };
1352+
1353+ let head_pos = coords_at_pos(text, head);
13461354 let anchor_pos = coords_at_pos(text, range.anchor);
1355+
13471356 let height = std::cmp::max(head_pos.row, anchor_pos.row)
13481357 - std::cmp::min(head_pos.row, anchor_pos.row)
13491358 + 1;