setChangesToDisplay(Collections.<Change>emptyList());
Optional<GitRepository> gitRepositoryOptional = gerritGitUtil.getRepositoryForGerritProject(project, selectedChange.project);
if (!gitRepositoryOptional.isPresent()) return;
final GitRepository gitRepository = gitRepositoryOptional.get();
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)