Fix a bug where a location could not be returned if it had an address without a country.

[PGijsbers]

With the change in #623 I accidentally introduced a bug that would cause an internal server error if the country was None.

Change(s)

Change Type: Fixed

Change Category: Internal

Changelog Entry:
Fix a bug where a location could not be returned if it had an address without a country.

How to Test

Covered by the added test.

Checklist

• Tests have been added or updated to reflect the changes, or their absence is explicitly explained.
• Documentation has been added or updated to reflect the changes, or their absence is explicitly explained.
• A self-review has been conducted checking:
  • No unintended changes have been committed.
  • The changes in isolation seem reasonable.
  • Anything that may be odd or unintuitive is provided with a GitHub comment explaining it (but consider if this should not be a code comment or in the documentation instead).
• All CI checks pass before pinging a reviewer, or provide an explanation if they do not.
• The PR title matches the changelog entry's one-line description.

Related Issues

[Taniya-Das]

LGTM