ApplinkEntry Thumbnail required after upgrading to 3.5/3.6

[veryhumble]

Description

After upgrading from Xamarin.Forms 3.4 to Version 3.5 or 3.6 I get the following Exception after trying to Register an AppLinkEntry using Application.Current.AppLinks.RegisterLink on iOS.

InvalidOperationException: Thumbnail must be set to a valid source

Steps to Reproduce

1. Register AppLinks with a valid AppLinkEntry
2. Start App
3. Exception is thrown saying Thumbnail is required

Expected Behavior

Actual Behavior

I see that Code was changed between Version 3.4 and 3.6
Before it was valid to have the Thumbnail Property not set, now it's mandatory. While I can certainly provide an ImageSource for example using ImageSource.FromFile("icon_app.png"); . The requirement is still a change.

Basic Information

• Version with issue: 3.6.0
• Last known good version: 3.4.0 SR2
• IDE: VisualStudio 8.0 Preview
• Platform Target Frameworks:
  • iOS: 12.1

Update:
I missed the fact that I used "FromResource" instead of "FromFile" to load the ImageSource, I leave this open, because the Title still and description qualifies.

[kingces95]

Change is breaking.

[samhouts]

Caused by #4733