IndexOutOfRangeException thrown when TextBlock text contains certain characters and TextTrimming is CharacterEllipsis

[jeromemanzano]

Describe the bug

When certain characters are passed to TextBlock.Text, and TextTrimming is CharacterEllipsis, the app crashes with the following exception:

System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at Avalonia.Media.GlyphRun.CreateGlyphRunMetrics()
   at Avalonia.Media.GlyphRun.get_Metrics()
   at Avalonia.Media.GlyphRun.get_BaselineOrigin()
   at Avalonia.Media.GlyphRun.CreateGlyphRunImpl()
   at Avalonia.Media.GlyphRun.get_PlatformImpl()
   at Avalonia.Media.GlyphRun.get_InkBounds()
   at Avalonia.Media.TextFormatting.TextLineImpl.CreateLineMetrics()
   at Avalonia.Media.TextFormatting.TextLineImpl.FinalizeLine()
   at Avalonia.Media.TextFormatting.TextLineImpl.Collapse(TextCollapsingProperties[] collapsingPropertiesList)
   at Avalonia.Media.TextFormatting.TextLayout.CreateTextLines()
   at Avalonia.Media.TextFormatting.TextLayout..ctor(ITextSource textSource, TextParagraphProperties paragraphProperties, TextTrimming textTrimming, Double maxWidth, Double maxHeight, Int32 maxLines)
   at Avalonia.Controls.TextBlock.CreateTextLayout(String text)
   at Avalonia.Controls.TextBlock.get_TextLayout()
   at Avalonia.Controls.TextBlock.MeasureOverride(Size availableSize)
   at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize)
   at Avalonia.Layout.Layoutable.Measure(Size availableSize)
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable control, Size availableSize, Thickness padding, Thickness borderThickness)
   at Avalonia.Controls.Presenters.ContentPresenter.MeasureOverride(Size availableSize)
   at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize)
   at Avalonia.Layout.Layoutable.Measure(Size availableSize)
   at Avalonia.Layout.LayoutHelper.MeasureChild(Layoutable control, Size availableSize, Thickness padding)
   at Avalonia.Controls.Decorator.MeasureOverride(Size availableSize)
   at Avalonia.Controls.Primitives.VisualLayerManager.MeasureOverride(Size availableSize)
   at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize)
   at Avalonia.Layout.Layoutable.Measure(Size availableSize)
   at Avalonia.Layout.Layoutable.MeasureOverride(Size availableSize)
   at Avalonia.Layout.Layoutable.MeasureCore(Size availableSize)
   at Avalonia.Layout.Layoutable.Measure(Size availableSize)
   at Avalonia.Layout.Layoutable.MeasureOverride(Size availableSize)
   at Avalonia.Controls.Window.MeasureOverride(Size availableSize)
   at Avalonia.Controls.WindowBase.MeasureCore(Size availableSize)
   at Avalonia.Layout.Layoutable.Measure(Size availableSize)
   at Avalonia.Layout.LayoutManager.Measure(Layoutable control)
   at Avalonia.Layout.LayoutManager.ExecuteInitialLayoutPass()
   at Avalonia.Controls.Window.ShowCore(Window owner)
   at Avalonia.Controls.Window.Show()
   at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.ShowMainWindow()
   at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args)
   at Avalonia.ClassicDesktopStyleApplicationLifetimeExtensions.StartWithClassicDesktopLifetime(AppBuilder builder, String[] args, Action`1 lifetimeBuilder)
   at TestAvalonia.Program.Main(String[] args) in /Users/astromobilesolutions/Projects/TestAvalonia/TestAvalonia/Program.cs:line 14

To Reproduce

1. Create a new Avalonia project.
2. Add the following code:

<TextBlock FontSize="13" TextTrimming="CharacterEllipsis" Width="200" Text="abcdefghijklmnopqrstuvwxyza⚡️bcd"/>

Expected behavior

App should not crash

Avalonia version

11.0.6-11.0.10

OS

macOS

Additional context

This is probably introduced in 11.0.6 since issue doesn't occur on version 11.0.5