Fix indexing of null values

collective / collective.solr

Solr search engine integration for Plone

https://pypi.org/project/collective.solr/

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Fix indexing of null values #370

Closed reebalazs closed 5 months ago

reebalazs commented 5 months ago

This is very surprising, but it looks like solr lacked the support for missing (None) values, so they got degraded to a "None" string. This PR adds the condition that fixes it.

Supporting None values was already added earlier for lists (multi values), but not for the simple index use case.