@NotNull
  public static FileHistoryRefresherI findOrCreate(@NotNull VcsHistoryProviderEx vcsHistoryProvider,
                                                   @NotNull FilePath path,
                                                   @NotNull AbstractVcs vcs,
                                                   @Nullable VcsRevisionNumber startingRevisionNumber) {
    FileHistoryRefresherI refresher =
      FileHistorySessionPartner.findExistingHistoryRefresher(vcs.getProject(), path, startingRevisionNumber);
    return refresher == null ? new FileHistoryRefresher(vcsHistoryProvider, path, startingRevisionNumber, vcs) : refresher;
  }
@NotNull
  public static FileHistoryRefresherI findOrCreate(@NotNull VcsHistoryProviderEx vcsHistoryProvider,
                                                   @NotNull FilePath path,
                                                   @NotNull AbstractVcs vcs,
                                                   @Nullable VcsRevisionNumber startingRevisionNumber)