SvgImage Exception when setting SvgPath Property late

[franzdevel]

I've run into exceptions when instantiating an SvgImage as follows:

sampleButton = new SvgImage
{
    IsVisible = false,
    SvgAssembly = typeof(App).GetTypeInfo().Assembly,
    HeightRequest = 44,
    WidthRequest = 44,
};

And, at a later point in time:

sampleButton.IsVisible = true;
sampleButton.SvgPath = "MyPath.MyImage.svg";

The SvgImage.RenderSvgToCanvas() method is invoked even though the SvgImage is initially invisible. The method fails because LoadedGraphic is null:

public IImageCanvas RenderSvgToCanvas (...)
{
    var originalSvgSize = LoadedGraphic.Size; // Exception because LoadedGraphic = null
    var finalCanvas = createPlatformImageCanvas (outputSize, finalScale);
    ...
}

A possible solution might be:

public IImageCanvas RenderSvgToCanvas (...)
{
    var finalCanvas = createPlatformImageCanvas(outputSize, finalScale);
    if (LoadedGraphic == null)
    {
        return finalCanvas;
    }
    var originalSvgSize = LoadedGraphic.Size;
    ...
}