[release/6.0] Cosmos: Persist non-shadow int keys on owned entity types #31936
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Port of #31933
Fixes #31664
Description
When an owned entity type contains and int property that is configured as the key EF assumes that it is a client-generated ordinal that shouldn't be persisted.
Customer impact
For models with matching shape the key property values are replaced with ordinals, causing data loss.
How found
Customer reported on 6.0
Regression
No.
Testing
Added tests.
Risk
Low. Quirked.