Well,
according to what I see in git gui it is, but it has been reverted for some weird reason by this commit:
b659b54325c23ba69fdf3c252c5875436f52dc90 (for some reason I cannot make link to the repository like you did)
I cherry-picked that commit and indeed, QSPIF works. It would be nice to integrate it back. Maybe worth a merge request…
I don’t like when things are too… straight forward. But here… it’s a maze. I don’t like it too much either.