protected boolean isChangeSelected(@NotNull TextMergeChange change, @NotNull BitSet lines, @NotNull ThreeSide side) {
      if (!isEnabled(change)) return false;
      int line1 = change.getStartLine(side);
      int line2 = change.getEndLine(side);
      return DiffUtil.isSelectedByLine(lines, line1, line2);
    }
protected boolean isChangeSelected(@NotNull TextMergeChange change, @NotNull BitSet lines, @NotNull ThreeSide side)