properties service: Don't fail if multiple entries are found

[JAORMX]

Summary

the matchEntityWithHint attempts to look for an entity using
identifying properties. For PRs, the upstream ID is not sufficient since
it's an integer that will clash with other PRs. In this case, we should
instead continue the search and search by name which is more unique.

Change Type

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• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

Outline how the changes were tested, including steps to reproduce and any relevant configurations.
Attach screenshots if helpful.

Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[jhrozek]

I think the intent is good and returning that multiple entries matched to the caller is not needed. I wrote a test and adjusted the existing tests, is it OK to just force-push to your branch @JAORMX ?

[coveralls]

coverage: 53.304% (+0.009%) from 53.295%
when pulling 2cd3c64 on properties-dont-fail-multiple
into 7a6cdc0 on main.