FIX #26991 TIME 00:30 fix passwordValidity when no PasswordLastChange

src/bundle/auth/Controller/userAuthentication.php

@@ -236,7 +236,8 @@ class userAuthentication
     private function verifyValidity($userAccount, $userLogin)
     {
         if ($this->securityPolicy['passwordValidity'] && $this->securityPolicy["passwordValidity"] != 0) {
-            $diff = ($userLogin->lastLogin->getTimestamp() - $userAccount->passwordLastChange->getTimestamp());
+            $userPasswordLastChange = $userAccount->passwordLastChange->getTimestamp() ?? 0;
+            $diff = ($userLogin->lastLogin->getTimestamp() - $userPasswordLastChange);
             // (timestamp de dernier login - timestamp de dernier chgt mdp) / durée de la session
             if ($diff > $this->securityPolicy['passwordValidity']) {
                 throw \laabs::newException('auth/userPasswordValidityExpiredRequestException');