repo.Network.Remotes.Remove does not remove the remote

We have this code below where we remove remote (origin) before adding a new one. From time to time, Add would fail with remote already exists. Is there an issue where remote is not removed when calling repo.Network.Remotes.Remove? Is it a race condition? We doubt it is since rerun the same code still yield remote already exists. Anything we do wrong or can improve? BTW, if we run git remote remove origin command, then it is removed - so repo is not corrupted.

repo.Network.Remotes.Remove(_remoteAlias);

// Configure the remote
remote = repo.Network.Remotes.Add(_remoteAlias, remoteUrl, refSpec);

LibGit2SharpRepository.cs の 234-237 行にある参照先の Kudu コードから始め、後続の Add の前にある repo.Network.Remotes.Remove 呼び出しを追跡します。報告されている remote-already-exists の動作を再現し、その後、remote が削除され、失敗せずに再度追加できることを確認します。