Backport to branch(3.15) : Add mixed-case object name tests

[feeblefakie]

This is an automated request for a manual backport of the following:

• Original PR: Add mixed-case object name tests #2908
• Commit to backport: 14db577

1. Resolve any conflicts that occur during the cherry-picking process.

git fetch origin &&
git checkout 3.15-pull-2908 &&
git cherry-pick --no-rerere-autoupdate -m1 14db57792a341e3aeaeaf20e5b6153c4908ff85a

2. Push the changes.
3. Merge this PR after all checks have passed.

Thank you!

[gemini-code-assist]

Note

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