UndoManager that tracks changes emitted from changeStream.UndoManager that tracks and optionally merges changes emitted from changeStream.UndoManager that tracks and optionally merges changes emitted from changeStream.UndoManagers with bounded history.UndoManager with bounded history.UndoManager with bounded history.UndoManager with bounded history.UndoManager.redo().UndoManager.undo().UndoManagers with unlimited history.UndoManager with unlimited history.UndoManager with unlimited history.UndoManager with unlimited history.UndoManagers with no history.UndoManager with no history: all changes emitted from changeStream will be
immediately forgotten.