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…started When a WaitFor* check passes synchronously, the helper disposes itself from inside the constructor, while the timer field is still null. The constructor then looks at WaitTask.IsCompleted to decide whether to start the timer, but WaitTask is a WhenAny(...).Unwrap() that completes on the thread pool, so it usually still reads as not completed at that point and the timer is started anyway. The later Dispose() from the using block returns early because the helper is already disposed, and nothing ever stops the timer. The timer's state is the helper, so until the timeout elapses it roots the helper, the rendered component, the renderer and everything the renderer holds. With bUnit's default timeout of one second that goes unnoticed. With a long DefaultWaitTimeout, a test suite keeps every page it rendered in memory for its whole run. The constructor now also checks isDisposed before starting the timer, and disposes the timer right after creating it if the check disposed the helper in between. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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There is a memory leak that this PR fixes.