Illegal choice Changed in Sort on element.

Problem/Motivation

When having no arguments set up for the block, it still passes them to search api autocomplete.
This results in an error displayed to the end user "Illegal choice Changed in Sort on element."

Steps to reproduce

You need a search api view. Set the form in a block and do not add any arguments.
Have the search view sort on more than 1 field. For example: Relevance and Changed

Proposed resolution

We need to check if we have any arguments added to the block config, before passing them to search api autocomplete.

Remaining tasks

None.

User interface changes

None.

API changes

None.

Data model changes

None.