set FLUX_POINT=0 by default.

[pbuehler]

No description provided.

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

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[pbuehler]

Hi @mbroz84, can you approve this PR?

[pbuehler]

Thank you @sawenzel!