Views: sort doesn't work

Problem/Motivation

Adding a sort option doesn't seem to work, when a field is added as a sort option it results in errors like this:

"changed" field, ascending order:

Search request failed. Index: algolia_changed_asc. Error: Index algolia_changed_asc does not exist. Request: {"query":"*","request_options":{"attributesToRetrieve":["search_api_id"],"facets":[],"clickAnalytics":true,"length":11,"offset":0}}

"changed" field, descending order:

Search request failed. Index: algolia_changed_desc. Error: Index algolia_changed_desc does not exist. Request: {"query":"*","request_options":{"attributesToRetrieve":["search_api_id"],"facets":[],"clickAnalytics":true,"length":11,"offset":0}}

Steps to reproduce

Add fields to the index.
Build a view that uses the index.
Add one of the fields to be a sort option.

Proposed resolution

Fix the sort logic.

Remaining tasks

Fix the sort logic.

User interface changes

Sort options work.

API changes

TBD

Data model changes

n/a