Query correct interface.

src/Windows/Avalonia.Win32/Automation/AutomationNode.cs

@@ -108,7 +108,7 @@ namespace Avalonia.Win32.Automation
                 UiaPatternId.RangeValue => ThisIfPeerImplementsProvider<AAP.IRangeValueProvider>(),
                 UiaPatternId.Scroll => ThisIfPeerImplementsProvider<AAP.IScrollProvider>(),
                 UiaPatternId.ScrollItem => this,
-                UiaPatternId.Selection => ThisIfPeerImplementsProvider<ISelectionProvider>(),
+                UiaPatternId.Selection => ThisIfPeerImplementsProvider<AAP.ISelectionProvider>(),
                 UiaPatternId.SelectionItem => ThisIfPeerImplementsProvider<AAP.ISelectionItemProvider>(),
                 UiaPatternId.Toggle => ThisIfPeerImplementsProvider<AAP.IToggleProvider>(),
                 UiaPatternId.Value => ThisIfPeerImplementsProvider<AAP.IValueProvider>(),