Writing notes to a task then closing the panel with ESC doesn't rollback notes

[takafumi ohtake]

How to reproduce

1. Open GanttTaskEditor.
2. Switch to notes tab.
3. Write notes.
4. Close the editor by pressing the escape key.
5. Open the editor again.

notes_remains.mp4

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Expected
Written notes are rollbacked to the one before the edit.

Actual
Written notes remains.
The note field of the task seems to be updated sometimes. But sometimes not.

Additional info
It's reproduced at https://bryntum.com/examples/gantt/basic/

[Maxim Gorkovsky]

Hello.
Reproduced, ticket opened here: https://github.com/bryntum/support/issues/3772 Thank you for report.