Add command to fix user duplicates

docs/02-admin/04-running-mbin/05-cli.md

@@ -162,6 +162,23 @@ php bin/console mbin:user:unsub <username>
 Arguments:
 - `username`: the user from which to remove all local followers.
 
+### Fix user duplicates
+
+This command allows you to fix duplicate usernames. There is a unique index on the usernames, but it is case-sensitive.
+This command will go through all the users with duplicate case-insensitive usernames,
+where the username is not part of the public id (meaning the original URL) and update them from the remote server.
+After that it will go through the rest of the duplicates and ask you whether you want to merge matching pairs.
+
+Usage:
+
+```bash
+php bin/console mbin:users:fix-duplicates [--dry-run]
+```
+
+Options:
+- `--dry-run`: don't change anything in the DB
+
+
 ## Magazine Management
 
 ### Magazine-Create

src/Command/ActorUpdateCommand.php

@@ -15,6 +15,7 @@
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Messenger\Stamp\TransportNamesStamp;
 
 #[AsCommand(
     name: 'mbin:actor:update',
@@ -45,15 +46,15 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $force = (bool) $input->getOption('force');
 
         if ($userArg) {
-            $this->bus->dispatch(new UpdateActorMessage($userArg, $force));
+            $this->bus->dispatch(new UpdateActorMessage($userArg, $force), [new TransportNamesStamp('sync')]);
         } elseif ($input->getOption('users')) {
             foreach ($this->repository->findRemoteForUpdate() as $u) {
-                $this->bus->dispatch(new UpdateActorMessage($u->apProfileId, $force));
+                $this->bus->dispatch(new UpdateActorMessage($u->apProfileId, $force), [new TransportNamesStamp('sync')]);
                 $io->info($u->username);
             }
         } elseif ($input->getOption('magazines')) {
             foreach ($this->magazineRepository->findRemoteForUpdate() as $u) {
-                $this->bus->dispatch(new UpdateActorMessage($u->apProfileId, $force));
+                $this->bus->dispatch(new UpdateActorMessage($u->apProfileId, $force), [new TransportNamesStamp('sync')]);
                 $io->info($u->name);
             }
         }