Fix WeakHashList losing one item when upgrading storage.

4 years ago · c53e5307a0
1 changed files with 3 additions and 1 deletions
--- a/src/Avalonia.Base/Utilities/WeakHashList.cs
+++ b/src/Avalonia.Base/Utilities/WeakHashList.cs
@ -104,8 +104,10 @@ internal class WeakHashList<T> where T : class
            if (existing!.TryGetTarget(out var target))
                Add(target);
        }
-        _arr = null;
        
+        Add(item);
+
+        _arr = null;
    }

    public void Remove(T item)