Deleted tags show up in the list

Reproduction steps

1. Add a new tag in github repository online (www.github.com).
2. Run .Net core Controller.
3. Added tag show up in the Api.
4. Delete a tag in github repository online.
5. Run controller and API.
6. Deleted tag show up in API Controller.

7. _repository = new Repository("localfolderpath");
    var network = _repository.Network.Remotes.First();
    var refSpecs = new List<string>() { network.FetchRefSpecs.First().Specification };
    var fetchOptions = new FetchOptions { TagFetchMode = TagFetchMode.All };
    fetchOptions.CredentialsProvider = (_url, _user, _cred) => new DefaultCredentials();
    fetchOptions.CredentialsProvider += (_url, _user, _cred) => _userNamePasswordCredentials;
   
    Commands.Pull(_repository, new Signature(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.Now), new PullOptions()
    {
        FetchOptions = fetchOptions,
        MergeOptions = new MergeOptions()
        {
            MergeFileFavor = MergeFileFavor.Theirs,
            CommitOnSuccess = true
        }
    });
   
    foreach (Remote remote in _repository.Network.Remotes)
    {
        Commands.Fetch(_repository, remote.Name, new string[0], fetchOptions, null);
        _repository.Network.Fetch(remote.Name, remote.FetchRefSpecs.Select(r => r.Specification), fetchOptions);
    }
   

Expected behavior

1. Deleted tags shouldn't come up when using _repository.Tags

Actual behavior

1. Deleted tags come up in _repository.Tags

Version of LibGit2Sharp (release number or SHA1)

Libgit2Sharp 0.26.2

Operating system(s) tested; .NET runtime tested

.Net Core 3.5, Microsoft Visual Studio Professional 2019 Version 16.9.0, .Net Framework 4.7.03190, Microsoft windows 10 pro.

Reproduisez le problème avec LibGit2Sharp 0.26.2 en utilisant les appels Pull et Fetch présentés, puis examinez comment _repository.Tags est alimenté après la suppression d’un tag distant. Comparez les refs récupérées avec la liste de tags attendue ; le travail est terminé lorsque les tags distants supprimés n’apparaissent plus dans _repository.Tags.