In general question: How to add custom autocomplete value to the AutocompleteInput ?
Problem started when you will try to add options to the AutocompleteInput:
<ReferenceInput source="company_id" reference="companies" validate={required()}>
<AutocompleteInput optionValue="id" optionText="name" options={{autoComplete: 'blabla'}}/>
</ReferenceInput>
Everything works good with (for example):
<LongTextInput options={{autoComplete: 'blabla'}}/>
