Building collection without instances removes labels

[bherr2]

Nichole has details but the HRA in OLS is missing Labels for most CL IDs in https://www.ebi.ac.uk/ols4/ontologies/hra
 
Example: https://www.ebi.ac.uk/ols4/search?q=CL%3A0000890&ontology=hra

[bherr2]

This is being addressed in EBISPOT/ols4#1165