fix problem with MySQL 'int'

application/Espo/Core/Utils/Auth.php

@@ -51,11 +51,12 @@ class Auth
 		$entityManager = $this->container->get('entityManager');
 
 		$user = $entityManager->getRepository('User')->get('system');
-		$user->set('isAdmin', $isAdmin);
 		if (!$user) {
 			throw new Error('System user is not found');
 		}
 
+		$user->set('isAdmin', $isAdmin);
+
 		$entityManager->setUser($user);
 		$this->container->setUser($user);
 	}

application/Espo/Core/Utils/Database/Schema/Converter.php

@@ -276,7 +276,8 @@ class Converter
 			case 'array':
 			case 'jsonArray':
 			case 'text':
-				$dbFieldParams['default'] = ''; //for db type TEXT can't be defined a default value
+			case 'longtext':
+				unset($dbFieldParams['default']); //for db type TEXT can't be defined a default value
 				break;
 
 			case 'bool':