Pull Request

Related issue

Fixes #5440

What does this PR do?

• introduces new function extract_geo_document for _geo facet extraction & removes that logic from extract_document_facets
• adds a new macro_rules! macro to generate add and del facet functions, limiting code duplication

Note: Since each variant of the macro uses a &mut ref, we can't just define top level helpers to use throughout the match block. Ideally a factory function would be used in place of this macro but since closures have anonymous types we run into issues defining the signature of the factory, unless we wanna toss in Box<dyn ...>. I think the macro is a nice trade-off here

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• Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
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