Filtering by date range with Solr in Drupal 8

Find It Cambridge’s desired functionality:

searching for a daterange gives anything that has at least one day of overlap with that date range.

Issue #2981151 by mkalkbrenner, omegadela: Index multi-value daterange fields (5e21b07d) · Commits · project / search_api_solr · GitLab

Key is to use the specific daterange field in Solr, as opposed to creating a separate date

We have everything we want happening in