Index: vendor/smile/elasticsuite/src/module-elasticsuite-catalog/Model/ResourceModel/Product/Fulltext/Collection.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/vendor/smile/elasticsuite/src/module-elasticsuite-catalog/Model/ResourceModel/Product/Fulltext/Collection.php b/vendor/smile/elasticsuite/src/module-elasticsuite-catalog/Model/ResourceModel/Product/Fulltext/Collection.php
--- a/vendor/smile/elasticsuite/src/module-elasticsuite-catalog/Model/ResourceModel/Product/Fulltext/Collection.php
+++ b/vendor/smile/elasticsuite/src/module-elasticsuite-catalog/Model/ResourceModel/Product/Fulltext/Collection.php	(date 1768905900089)
@@ -16,6 +16,8 @@
 use Smile\ElasticsuiteCatalog\Model\Search\Request\Field\Mapper as RequestFieldMapper;
 use Smile\ElasticsuiteCore\Search\Adapter\Elasticsuite\Response\QueryResponse;
 use Smile\ElasticsuiteCore\Search\Request\BucketInterface;
+use Magento\Search\Model\QueryFactory;
+use Smile\ElasticsuiteCore\Model\Autocomplete\Terms\DataProvider as TermDataProvider;
 use Smile\ElasticsuiteCore\Search\Request\QueryInterface;
 use Smile\ElasticsuiteCore\Search\RequestInterface;

@@ -101,6 +103,18 @@
      */
     private $requestFieldMapper;

+    /**
+     * Query factory
+     *
+     * @var QueryFactory
+     */
+    private $queryFactory;
+
+    /**
+     * @var TermDataProvider
+     */
+    private $termDataProvider;
+
     /**
      * Constructor.
      *
@@ -154,6 +168,8 @@
         \Smile\ElasticsuiteCore\Search\Request\Builder $requestBuilder,
         \Magento\Search\Model\SearchEngine $searchEngine,
         RequestFieldMapper $requestFieldMapper,
+        QueryFactory $queryFactory,
+        TermDataProvider $termDataProvider,
         ?\Magento\Framework\DB\Adapter\AdapterInterface $connection = null,
         $searchRequestName = 'catalog_view_container'
     ) {
@@ -184,6 +200,8 @@
         $this->searchEngine       = $searchEngine;
         $this->requestFieldMapper = $requestFieldMapper;
         $this->searchRequestName  = $searchRequestName;
+        $this->queryFactory       = $queryFactory;
+        $this->termDataProvider   = $termDataProvider;
     }

     /**
@@ -350,6 +368,7 @@
      */
     public function setSearchQuery($query)
     {
+        $terms = $this->getQueryText();
-        $this->query = $query;
+        $this->query = $terms;
         $this->_isFiltersRendered = false;

@@ -370,6 +389,26 @@
         return $this->setSearchQuery($query);
     }

+
+    /**
+     * @return array|null[]|string[]
+     */
+    private function getQueryText()
+    {
+        $terms = array_map(
+            function ($termItem) {
+               return $termItem->getTitle();
+            },
+            $this->termDataProvider->getItems()
+        );
+
+        if (empty($terms)) {
+            $terms = [$this->queryFactory->get()->getQueryText()];
+        }
+
+        return $terms;
+    }
+
     /**
      * Return field faceted data from faceted search result.
      *