Crashes sometimes occur in case of cancellation when several requests are pending

[englebertnicolas]

Crashes sometimes occur in case of cancellation when several requests are pending.

Following update corrects the issue:
In the Speak(...) function (TextToSpeech.Plugin.iOS/TextToSpeech.cs line 50), just after:
await semaphore.WaitAsync(cancelToken);
Add:
cancelToken.ThrowIfCancellationRequested();

(Before calling: await SpeakUtterance(speechUtterance, cancelToken);)

Bug Information

Version Number of Plugin: 3.0.1
Device Tested On: iPhone 6 (11.1)
Simulator Tested On:
Version of VS: 2015 (14.0.25431.01 update 3)
Version of Xamarin: 4.7.10.33
Versions of other things you are using:

Steps to reproduce the Behavior

Expected Behavior

Actual Behavior

Code snippet

Screenshotst

[prashantvc]

Crashes sometimes occur in case of cancellation when several requests are pending.

How often does this happen? Could you share crash log? It will help us to troubleshoot the issue