@Override
  protected String getDimensionServiceKey() {
    // TODO: Currently class is in other package, but key to persist dimension is preserved.
    // TODO: Rename later to some "neutral" constant not to be confusing relative to current class location.
    return "org.jetbrains.idea.svn.dialogs.ToBeMergedDialog";
  }
@Override
  protected String getDimensionServiceKey()