Backspace not propagating to clients in the same room

[ibdafna]

When typing something in a cell, and then hitting the backspace key to delete some of the content, the deleted keystrokes do not propagate to others viewing the notebook. See attached gif.

This is happening for me on JupyterLab 4.0.x/4.1.x/4.2.x, and jupyter-collaboration==4.1.1. Downgrading to 2.0.11 doesn't solve the problem, which makes me think it's likely in one of the transient dependencies of jupyter-collaboration.

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[Zsailer]

Thanks @ibdafna. I can reproduce this issue with latest jupyterlab and jupyter-collaboration as well.

[jzhang20133]

This issue does not reproduce for pycrdt<=0.8.23, but reproduce when pycrdt==0.8.24. cc @ibdafna @Zsailer @davidbrochart

[davidbrochart]

Thanks, I've yanked pycrdt v0.8.24 for now.