final VirtualFile virtualFile = gitRepository.getGitDir();
final FilePathImpl filePath = new FilePathImpl(virtualFile);
Map<String, RevisionInfo> revisions = selectedChange.revisions;
final String revisionId = selectedRevisions.get(selectedChange);
RevisionInfo currentRevision = revisions.get(revisionId);
RevisionFetcher revisionFetcher = new RevisionFetcher(gerritUtil, gerritGitUtil, notificationService, project, gitRepository)
.addRevision(currentRevision);
if (baseRevision.isPresent()) {
revisionFetcher.addRevision(baseRevision.get().getSecond());
}