Clicking on the refresh icon quickly creates many notifications

[jtpio]

Description

Clicking on the refresh icon quickly creates many notifications.

Reproduce

1. Go to the git panel
2. Click on the refresh icon multiple times
3. Many notifications are created

jupyterlab-git-refresh-notifications.webm

Expected behavior

One notification should be enough. Maybe the previous one should be disposed and a new one recreated.

Context

• Python package version: 0.50.1

• Extension version: 0.50.1

• Git version: 2.43.0

• Operating System and its version:

Command Line Output

Paste the output from your command line running `jupyter lab` here, use `--debug` if possible.

Web Browser Output

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