ColorGallery: SelectedColorChanged event raised before SelectedColor changed

[User3290]

Our case is

<fluent:ColorGallery x:Name="CellFillColorPicker"
                                                     Mode="ThemeColors"
                                                     IsAutomaticColorButtonVisible="False"
                                                     ThemeColorGridRows="0"
                                                     Columns="10"
                                                     IsNoColorButtonVisible="True">
                                    <i:Interaction.Triggers>
                                        <i:EventTrigger EventName="SelectedColorChanged">
                                            <i:InvokeCommandAction Command="{Binding SetBackgroundColorCommand}"
                                                                   CommandParameter="{Binding ElementName=CellFillColorPicker, Path=SelectedColor}" />
                                        </i:EventTrigger>
                                    </i:Interaction.Triggers>
                                </fluent:ColorGallery>

In sources we can see next

private static void OnSelectedColorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    {
      ColorGallery colorGallery = d as ColorGallery;
      if (colorGallery == null)
        return;
      colorGallery.RaiseEvent(new RoutedEventArgs(ColorGallery.SelectedColorChangedEvent));
      Color? color = (Color?) e.NewValue;
      colorGallery.UpdateSelectedColor(color);
    }

Why do we have so strange logic?
I have received an old value of color in the handler of specified command in XAML!

---

Environment

• Fluent.Ribbon v4.0.3.394
• Theme Office2013 (Component/Themes/Office2013/Generic.xaml)
• Windows Server 2012R2
• .NET Framework 4.6.1

[batzen]

Looks like an oversight.
No need to use exclamation marks...