Merge pull request #12 from JoepRoebroek/patch-1

Apply speedup to fixtures with no records as well

src/TestSuite/Fixture/ChecksumTestFixture.php

@@ -86,7 +86,7 @@ public function drop(ConnectionInterface $db)
     protected function _tableUnmodified($db)
     {
         $tableKey = $this->_getTableKey();
-        if (empty(static::$_tableHashes[$tableKey])) {
+        if (!array_key_exists($this->table, static::$_tableHashes)) {
             return false;
         }