release-23.1:Backport!7386

Merged Andrey Vertiprahov requested to merge cherry-pick-12b4f009 into release-23.1

Set Optional value to None on ETL Models.

See merge request !7386 (merged)

(cherry picked from commit 12b4f009)

a3ffd3b0 Set Optional value to None on ETL Models.

Merge request reports