When I'm trying order search results by entity property without specifying order I'm getting an exception

Issue Summary

Ordering search result by entity property without passing `ASC/DESC` is impossible.

Steps to Reproduce

1. Create add-on with searchable entity property (https://developer.atlassian.com/cloud/jira/platform/jira-entity-properties/#making-searchable-entity-properties)
2. Create a query like 

order by issue.property[myEp].beataIsSuper

(Where `myEp` is entity property name and `beataIsSuper` is one of extractions)

Expected Results

Results are sorted (in some default order ie. DESC).

Actual Results

An unknown error occurred while trying to perform a search.

Workaround

Pass `ASC/DESC` at the end of the query.