Test and fix for Issue #26742

[EamonHetherton]

• I've read the guidelines for contributing and seen the walkthrough
• I've posted a comment on an issue with a detailed description of how I am planning to contribute and got approval from a member of the team
• The code builds and tests pass locally (also verified by our automated build checks)
• Commit messages follow this format:

        Summary of the changes
        - Detail 1
        - Detail 2

        Fixes #26742

• Tests for the changes have been added (for bug fixes / features)
• Code follows the same patterns and style as existing code in this repo

[ajcvickers]

Looking good, but looks like BuiltInDataTypesSqlServerTest are failing. Consider running all the tests locally to see which are failing. See https://github.com/dotnet/efcore/blob/main/docs/getting-and-building-the-code.md
Probably no need to install the Cosmos Emulator for this PR.

[ajcvickers]

@EamonHetherton Can you rebase this against main and resolve conflicts?

[ajcvickers]

Thanks!