Fixing loose comparison

Related: now unit tests shouldn't trigger a MySQL query, so they should pass on scrutinizer

1 files changed, 1 insertions, 1 deletions

diff --git a/core/Db.php b/core/Db.php
index 8c718ceac5..521b7f205f 100644
--- a/core/Db.php
+++ b/core/Db.php
@@ -738,7 +738,7 @@ class Db
 
     public static function isOptimizeInnoDBSupported($version = null)
     {
-        if (empty($version)) {
+        if ($version === null) {
             $version = Db::fetchOne("SELECT VERSION()");
         }