”Run Selected Code" default shortcut "Shift + Enter" not working in text editor on Jupyterlab 4.3.0

[HereticSK]

Description

When trying to run selected code in a text editor with vim mode enabled, the default keyboard shortcut "Shift + Enter" not does not work, the selected code is not sent to the console and run.

The following manual tests are done:

• Enable vim mode, hit "Shift + Enter", fail
• Enable vim mode, click "Run Selected Code" in run menu with mouse, succeed
• Enable vim mode, change keyboard shortcut to "Ctrl + Enter", succeed
• Disable vim mode, both keyboard shortcut and run menu succeed

Reproduce

1. Open a python file with text editor, enable vim mode
2. Create a console for this editor
3. Try running selected code by hitting "Shift + Enter"

Context

• Operating System and version: Arch Linux
• Browser and version: Chrome Version 130.0.6723.70 (Official Build) (64-bit)
• JupyterLab version: 4.3.0
• jupyterlab-vim version: 4.1.4

Jupyterlab labextension list shows

JupyterLab v4.3.0
/home/sk/.local/pipx/venvs/jupyterlab/share/jupyter/labextensions
jupyterlab_pygments v0.3.0 enabled OK (python, jupyterlab_pygments)
@axlair/jupyterlab_vim v4.1.4 enabled OK (python, jupyterlab_vim)

This keyboard issue may have occurred as early as Jupyterlab version 4.2.0, when I had just upgraded to 4.2.0. But I did not try disabling vim mode and changing to a different shortcut at that time. I simply rolled back to versions < 4.2.0 to work around. Until recently 4.3.0 released, I upgraded and found the issue still not fixed. I tried disabling vim mode and changing to a different to do further investigation.

Same issue was raised in jupyterlab repo jupyterlab/jupyterlab#16939