Short-circuit setting source to current value.

6 years ago · 89684e5b94
1 changed files with 5 additions and 0 deletions
--- a/src/Avalonia.Controls/Selection/InternalSelectionModel.cs
+++ b/src/Avalonia.Controls/Selection/InternalSelectionModel.cs
@ -63,6 +63,11 @@ namespace Avalonia.Controls.Selection

        private protected override void SetSource(IEnumerable? value)
        {
+            if (Source == value)
+            {
+                return;
+            }
+
            object?[]? oldSelection = null;

            if (Source is object && value is object)