private void reloadTotalDiff() throws VcsException {
    Map<Repository, Collection<Change>> newDiff = new HashMap<>();
    for (Repository repository: getRepositories()) {
      newDiff.put(repository, GitBranchWorker.loadTotalDiff(repository, myBranchName));
    }

    updateTotalDiff(newDiff);
  }
private void reloadTotalDiff()