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IHtmlDocument.Title results in StackOverflow

See original GitHub issue

Bug Report

Prerequisites

Can you reproduce the problem in a MWE?
Are you running the latest version of AngleSharp? Yes, 0.14.0, also tried 1.0.0-alpha-844
Did you check the FAQs to see if that helps you?
Are you reporting to the correct repository? (there are multiple AngleSharp libraries, e.g., AngleSharp.Css for CSS support)
Did you perform a search in the issues?

For more information, see the CONTRIBUTING guide.

Description

Cannot get Title

Yes, I known the input is not HTML, but it should not results in StackOverflow.

Steps to Reproduce

HttpClient httpClient = new HttpClient();
string html = await httpClient.GetStringAsync("http://162.212.178.138:8080/18/glibc-2.14/localedata/charmaps/GBK");
HtmlParser HtmlParser = new HtmlParser();
IHtmlDocument htmlDocument = await HtmlParser.ParseDocumentAsync(html);
Console.WriteLine($"htmlDocument.Title: {htmlDocument.Title}");

Expected behavior:

That is results in an empty string / Title.

Actual behavior:

Stack overflow.
Repeat 16127 times:
--------------------------------
   at AngleSharp.Dom.NodeExtensions.FindDescendant[[System.__Canon, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](AngleSharp.Dom.INode)
--------------------------------
   at AngleSharp.Html.Dom.HtmlDocument.GetTitle()
   at OpenDirectoryDownloader.DirectoryParser+<ParseHtml>d__2.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[OpenDirectoryDownloader.DirectoryParser+<ParseHtml>d__2, OpenDirectoryDownloader, Version=1.9.3.8, Culture=neutral, PublicKeyToken=null]](<ParseHtml>d__2 ByRef)
   at OpenDirectoryDownloader.DirectoryParser.ParseHtml(OpenDirectoryDownloader.Shared.Models.WebDirectory, System.String, System.Net.Http.HttpClient)
   at OpenDirectoryDownloader.OpenDirectoryIndexer+<ProcessWebDirectoryAsync>d__56.MoveNext()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[OpenDirectoryDownloader.OpenDirectoryIndexer+<ProcessWebDirectoryAsync>d__56, OpenDirectoryDownloader, Version=1.9.3.8, Culture=neutral, PublicKeyToken=null]].MoveNext(System.Threading.Thread)
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Runtime.CompilerServices.IAsyncStateMachineBox, Boolean)
   at System.Threading.Tasks.Task.RunContinuations(System.Object)

Environment details:

Windows 10 Pro 20H2 .NET 5