Cannot switch collaborative mode off

[sntgluca]

Description

I am trying to switch off RTC via jupyter lab --YDocExtension.disable_rtc=True without success.
The extension is still active no matter what I try...

Reproduce

1. Create a conda environment with the latest available jupyter-lab and jupyter-collaboration conda install -c conda-forge jupyter-collaboration
2. Run jupyterlab jupyter lab --YDocExtension.disable_rtc=True

I have no idea how to further troubleshoot...

Expected behavior

I'd expect that when starting with the YDocExtension.disable_rtc flag the "collaboration" functionalities would be inactive, including menus, URL changes, etc, as if the extension was disabled...

Context

❯ jupyter --version
Selected Jupyter core packages...
IPython : 8.26.0
ipykernel : 6.29.5
ipywidgets : 8.1.3
jupyter_client : 8.6.2
jupyter_core : 5.7.2
jupyter_server : 2.14.2
jupyterlab : 4.2.4
nbclient : 0.10.0
nbconvert : 7.16.4
nbformat : 5.10.4
notebook : 7.2.1
qtconsole : not installed
traitlets : 5.14.3

jupyter troubleshoot
[cut]
sys.version:
3.10.14 | packaged by conda-forge | (main, Mar 20 2024, 12:45:18) [GCC 12.3.0]

platform.platform():
Linux-3.10.0-1160.108.1.el7.x86_64-x86_64-with-glibc2.17

[delestro]

Leaving a comment here, because I'm also looking at how to disable the RTC when starting the jupyter server. I have the same issue; it's always on, no matter what.

[davidbrochart]

I just tried from a fresh environment and jupyter lab --YDocExtension.disable_rtc=True effectively disables RTC. That's with jupyterlab v4.3.0 and jupyter-collaboration v3.0.0.