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SharePoint Rest service exception produced when trying to connect to SharePoint site using a different case (lower versus upper) in the URL.

See original GitHub issue

Describe the bug

If I have a site in SharePoint online that has capital letters in the URL

    https://mytenant.sharepoint.com/sites/TEST-MixedCase

And I try to use a different case (say lower case)

    https://mytenant.sharepoint.com/sites/test-mixedcase

The code throws an exception (SharePoint Rest service exception)

   at PnP.Core.Services.BatchClient.ProcessSharePointRestBatchResponseContent(Batch batch, String batchResponse)
   at PnP.Core.Services.BatchClient.<ProcessSharePointRestBatchResponse>d__48.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.Services.BatchClient.<ExecuteSharePointRestBatchAsync>d__46.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.Services.BatchClient.<ExecuteBatch>d__37.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.Services.PnPContext.<ExecuteAsync>d__86.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.QueryModel.DataModelQueryService`1.<ExecuteQueryAsync>d__9.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.QueryModel.BaseQueryProvider.<CastTask>d__9`1.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.QueryModel.BaseDataModelExtensions.<BaseLinqGetAsync>d__11`1.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at PnP.Core.Model.SharePoint.ListCollection.<GetByTitleAsync>d__8.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Demo.AzureFunction.GetSiteDocuments.<Run>d__2.MoveNext() in C:\Projects\Demo.AzureFunction\GetSiteDocuments.cs:line 36

Steps to reproduce

Create a site in SharePoint online named “TEST-MixedCase”. Note the URL should be “/sites/TEST-MixedCase”
Use the following code to create a context and the try to get list details.

    Uri siteUrl = new Uri("https://mytenant.sharepoint.com/sites/test-mixedcase");
    using (var pnpContext = await pnpContextFactory.CreateAsync(siteUrl))
    {
        try
        {
            IList sharedDocuments = await pnpContext.Web.Lists.GetByTitleAsync("Documents", l => l.RootFolder);

        }
        catch (Exception ex)
        {
            return new BadRequestObjectResult(new { message = ex.Message });
        }

    }