feature/pdct 1553 fix query for muli geography

[diversemix]

Description

• Add a test for get_family_document_and_context
• Change query to return first item (from one_or_none)

Proposed version

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Type of change

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• Bug fix
• New feature
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• Documentation update
• Refactor legacy code
• Dependency update

How Has This Been Tested?

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Reviewer Checklist

• DB_CLIENT DEPENDENCY IS ON THE LATEST VERSION
• The PR represents a single feature (small driveby fixes are also ok)
• The PR includes tests that are sufficient for the level of risk
• The code is sufficiently commented, particularly in hard-to-understand areas
• Any required documentation updates have been made
• Any TODOs added are captured in future tickets
• No FIXMEs remain

[linear]

PDCT-1553 Fix query for muli-geography

[odrakes-cpr]

nice, presume this will be captured in the ticket that's going to handle multi geos