After playing with this, I was able to get it to work.
I configured Ctrl + \, Ctrl + K to be a shortcut (but you can set your own as long as there are no conflicts).
After that, if you select any project / file node and click on the shortcut, it will invoke commit.
The catch here is that you need to select project
or file
in the solution explorer
, which makes sense, because otherwise the provider does not know what to do.
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