Fix: Runtime session not shutting down when notebook is closed #10636
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Dispose cells when a notebook is disposed, so that text model references aren't leaked, the notebook document is closed, and the runtime session is shutdown. Addresses #10215.
Screen.Recording.2025-11-18.at.18.54.23.mov
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x = 1xdoesn't exist - FAILYou can also check in the Runtimes dev pane.