`yii\sphinx\ActiveQuery` fixed to be resuable.

extensions/sphinx/ActiveQuery.php

@@ -248,12 +248,14 @@ class ActiveQuery extends Query implements ActiveQueryInterface
         $this->setConnection($db);
         $db = $this->getConnection();
 
-        $params = $this->params;
         if ($this->sql === null) {
-            list ($this->sql, $params) = $db->getQueryBuilder()->build($this);
+            list ($sql, $params) = $db->getQueryBuilder()->build($this);
+        } else {
+            $sql = $this->sql;
+            $params = $this->params;
         }
 
-        return $db->createCommand($this->sql, $params);
+        return $db->createCommand($sql, $params);
     }
 
     /**

tests/unit/extensions/sphinx/ActiveRecordTest.php

@@ -234,4 +234,14 @@ class ActiveRecordTest extends SphinxTestCase
         $this->assertArrayHasKey('tokenized', $rows[0], 'No tokenized keyword!');
         $this->assertArrayHasKey('normalized', $rows[0], 'No normalized keyword!');
     }
+
+    /**
+     * @depends testFind
+     */
+    public function testFindQueryReuse()
+    {
+        $result = ArticleIndex::find()->andWhere(['author_id' => 1]);
+        $this->assertTrue($result->one() instanceof ArticleIndex);
+        $this->assertTrue($result->one() instanceof ArticleIndex);
+    }
 }