React-Admin AutocompleteInput only uses first 1000 choices

We use AutocompleteInput with an static array of more than 1000 choices for relatedPages:

   <ArrayInput source="pages">
    <SimpleFormIterator>
      <AutocompleteInput
        source={"id"}
        choices={relatedPages}
      />
    </SimpleFormIterator>
  </ArrayInput>

Expected: We can select one item of all items in our static array.

Actually: We can only select from the first 1000 items of our static array. This happens with the SelectInput, too.

Is this an expected behaviour and is there a way to increase this limit of 1000 choices?

BUG: 7880