set username_canonical on organization creation

src/Service/Organization/OrganizationFactory.php

@@ -538,6 +538,7 @@ class OrganizationFactory
     {
         $admin = new Person();
         $admin->setUsername('admin'.strtolower($organizationCreationRequest->getSubdomain()));
+        $admin->setUsernameCanonical('admin'.strtolower($organizationCreationRequest->getSubdomain()));
         $randomString = ByteString::fromRandom(32)->toString();
         $admin->setPassword($randomString);
         $admin->setEnabled(true);
@@ -618,6 +619,7 @@ class OrganizationFactory
             }
 
             $person->setUsername($creationRequestData->getUsername());
+            $person->setUsernameCanonical($creationRequestData->getUsername());
             $person->setPassword(ByteString::fromRandom(32)->toString());
             $person->setGender($creationRequestData->getGender());
             $person->setName(