Csharp 为什么AggregateException的Catch块不足以处理取消

运行以下代码:

using static System.Console;
WriteLine("Handling cancellations and exceptions.");
CancellationTokenSource cts = new();
CancellationToken token = cts.Token;

var transferMoney = Task<string>.Factory.StartNew(
 () =>
 {
     WriteLine($"Initiating the money transfer.");
     int progressBar = 0;
     WriteLine("Press c to cancel withing 5 sec.");
     // Assuming the task will take 5 seconds.
     // So, after every second, we'll increase the progress by 20%
     for (int i = 0; i < 5; i++)
     {
         token.ThrowIfCancellationRequested();
         Thread.Sleep(1000);
         progressBar += 20;
         WriteLine($"Progress:{progressBar}%");
     }
     return "Money transfer is completed.";
 }, token);

var input = ReadKey().KeyChar;
if (input.Equals('c'))
{
    WriteLine("\nCancellation is requested.");
    cts.Cancel();
}
try
{

    transferMoney.Wait();   
    WriteLine(transferMoney.Result);
}
catch (AggregateException ae)
{
    ae.Handle(e =>
    {
        WriteLine($"Caught error :  {e.Message}");
        return true;
    });
}

catch (OperationCanceledException oce)
{
    WriteLine($"Caught error due to cancellation :{oce.Message}");
}

WriteLine($"Payment processing status: {transferMoney.Status}");
WriteLine("Thank you, visit again!");

以下是示例输出(预期行为--毫无疑问):

Handling cancellations and exceptions.
Initiating the money transfer.
Press c to cancel withing 5 sec.
Progress:20%
Progress:40%
Progress:60%
c
Cancellation is requested.
Progress:80%
Caught error :  A task was canceled.
Payment processing status: Canceled
Thank you, visit again!

现在使用以下语句之一更新Try块:

try
{
    //transferMoney.Wait();
    transferMoney.Wait(token); 
    //await transferMoney; //Same observation
    // There is no change in the remaining code

然后再次运行代码.以下是一个样例输出.

Handling cancellations and exceptions.
Initiating the money transfer.
Press c to cancel withing 5 sec.
Progress:20%
Progress:40%
c
Cancellation is requested.
**Caught error due to cancellation :The operation was canceled.**
Payment processing status: Running
Thank you, visit again!

请注意，这一次AggregateException的Catch块不足以处理OperationCanceledException.我想知道这背后的原因.你能分享你的 idea 吗--我错过了哪里？ [补充说明:我知道在前面的例子中，Wait()只能抛出AggregateException，但这个重载版本的Wait(即Wait(Token))也会抛出OperationCancelledException.]