Spellcheck suggestions returning concatenated/incorrect results

Hi @mkalkbrenner

Thanks for the suggestion. But even after disabling the `Retrieve from server` option, the issue remains the same.

However Search API spellcheck module suggestions are coming fine in search view fields.

Attaching Index field configuration for spellcheck field and solr backend schema configuration for spellcheck.

Index field configuration for Spellcheck

Solr schema configuration for spellcheck

Incorrect Phrase spellcheck autocomplete suggestion

Incorrect work spellcheck autocomplete suggestion

Correct Phrase and word spellcheck suggestion using Search API spellcheck views integration.

Hi @mkalkbrenner

Agreed. The suggestions are correct but in a flat list.
I haven't done any custom code for this.
But briefly looked into the code.
Can this be causing the issue

protected function getAutocompleteSpellCheckSuggestions(ResultInterface $result, SuggestionFactory $suggestion_factory) {
    $suggestions = [];
    foreach ($this->extractSpellCheckSuggestions($result) as $keys) {
      $suggestions[] = $suggestion_factory->createFromSuggestedKeys(implode(' ', $keys));
    }
    return $suggestions;
  }

Here the implode(' ', $keys) statement is what converting it into flat list.
I tried to change the code for testing to

protected function getAutocompleteSpellCheckSuggestions(ResultInterface $result, SuggestionFactory $suggestion_factory) {
    $suggestions = [];
    foreach ($this->extractSpellCheckSuggestions($result) as $keys) {
      foreach ($keys as $key) {
         $suggestions[] = $suggestion_factory->createFromSuggestedKeys($key);  
      }
      //  $suggestions[] = $suggestion_factory->createFromSuggestedKeys(implode(' ', $keys));
    }
    return $suggestions;
  }

and results were better.

However, I needed to confirm one thing as in
For this misspelled text "vaihtelu on täysin normaaliu" shouldn't we expect the suggestion like "vaihtelu on täysin normaalii" as against current suggestion which is "normaalii" ?