[6.0] [6.0 alpha 2] Database not set in Joomla\CMS\Installer\Installer error

libraries/src/Installer/Installer.php

@@ -208,6 +208,10 @@ public function __construct($basepath = __DIR__, $classprefix = '\\Joomla\\CMS\\
         $this->loadAdapters();
 
         $this->extension = Table::getInstance('Extension');
+
+        if ($this instanceof DatabaseAwareInterface) {
+            $this->setDatabase(Factory::getContainer()->get(DatabaseInterface::class));
+        }
     }
 
     /**