I think I sold this myself. But wow, why isn't there any documentation for this.
A couple of configuration need to be set:
- Structure > Display Suite > [Taxonomy term] > Manage Display >
Default tab (top tab) > Custom Display Settings (bottom tab) :
Select "Search Result"
- Structure > Taxonomy > [Vocabulary name] >
Manage display (tab) >Search Result : Full Term Name -> Format:
"Plain text"
- Structure > Content types > [Content type with taxonomy
term reference field] > Search index: [Vocabulary] -> Region:
Content
- Configuration > Development > Performance > Clear all
caches Configuration > Search and metadata > Apache Solr search >
Settings > Facets: Select Facet for the Taxonomy/Vocabulary
- Configuration > Search and metadata > Apache Solr search > Settings > Facets > Click configure display: Hard limit -> No limit (not sure why that was necessary, but it was)
Screenshots:
Enable search results (Step 1)
Add taxonomy to search results (Step 2)
Select facet (Step 4)
Facet configuration (Step 5)