LibGit2Sharp.LibGit2SharpException | too many redirects or authentication replays

I am using LibGit2Sharp (version 0.28.0) with a Personal Access Token to access AZURE Repository.

UsernamePasswordCredentials =>
{
Username = "pat",
Password = PersonalAccessToken
}

CustomHeader => "Authorization: Basic {Convert.ToBase64String(Encoding.UTF8.GetBytes($":{PersonalAccessToken}"))}"

Everything was working as expected until last week, when I started encountering exceptions while trying to interact with the remote repository (e.g., clone, pull, push).

Clone failed. | LibGit2Sharp.LibGit2SharpException | too many redirects or authentication replays
at LibGit2Sharp.Core.Ensure.HandleError(Int32 result) in //LibGit2Sharp/Core/Ensure.cs:line 154
at LibGit2Sharp.Core.Ensure.ZeroResult(Int32 result) in //LibGit2Sharp/Core/Ensure.cs:line 172
at LibGit2Sharp.Core.Proxy.git_clone(String url, String workdir, GitCloneOptions& opts) in //LibGit2Sharp/Core/Proxy.cs:line 278
at LibGit2Sharp.Repository.Clone(String sourceUrl, String workdirPath, CloneOptions options) in //LibGit2Sharp/Repository.cs:line 824

从 Core/Ensure.cs、Core/Proxy.cs 和 Repository.cs 中报告的调用路径开始，重点关注 LibGit2Sharp 0.28.0 中的 Repository.Clone。使用所示的凭据和标头重现对 Azure 仓库的身份验证失败，然后记录原因，并验证 clone、pull 和 push 不再产生所报告的异常。