@NotNull
  @Override
  public <S> List<S> filterUniqueRoots(@NotNull List<S> in, @NotNull Function<? super S, ? extends VirtualFile> convertor) {
    if (in.size() <= 1) return in;

    return Registry.is("svn.filter.unique.roots.by.url") ? filterUniqueByUrl(in, convertor) : filterUniqueByWorkingCopy(in, convertor);
  }
@NotNull
  @Override
  public <S> List<S> filterUniqueRoots(@NotNull List<S> in, @NotNull Function<? super S, ? extends VirtualFile> convertor)