Fixed typo in query builder and reverted changes to DbCache.php

framework/caching/DbCache.php

@@ -124,7 +124,7 @@ class DbCache extends Cache
 		$query = new Query;
 		$query->select(array('id', 'data'))
 			->from($this->cacheTable)
-			->where(array('in', 'id', (array)$keys))
+			->where(array('id' => $keys))
 			->andWhere('([[expire]] = 0 OR [[expire]] > ' . time() . ')');
 
 		if ($this->db->enableQueryCache) {

framework/db/QueryBuilder.php

@@ -744,7 +744,7 @@ class QueryBuilder extends \yii\base\Object
 		$parts = array();
 		foreach ($condition as $column => $value) {
 			if (is_array($value)) { // IN condition
-				$parts[] = $this->buildInCondition('in', array($column, $value), $query);
+				$parts[] = $this->buildInCondition('in', array($column, $value), $params);
 			} else {
 				if (strpos($column, '(') === false) {
 					$column = $this->db->quoteColumnName($column);