Symfony wrong persist database working with two entity managers - symfony

Question

I have the same symfony app deployed in two servers.
I use two entity managers, one called defaul with a connection on "local" database and the other called online on the "remote" database
doctrine:
dbal:
default_connection: default
connections:
default:
driver: pdo_mysql
host: '%database_host%'
port: '%database_port%'
dbname: '%database_name%'
user: '%database_user%'
password: '%database_password%'
charset: UTF8
online:
driver: pdo_mysql
host: '%database_host2%'
port: '%database_port2%'
dbname: '%database_name2%'
user: '%database_user2%'
password: '%database_password2%'
charset: UTF8
orm:
auto_generate_proxy_classes: "%kernel.debug%"
default_entity_manager: default
entity_managers:
default:
dql:
string_functions:
GROUP_CONCAT: AppBundle\DQL\GroupConcatFunction
connection: default
mappings:
LexikTranslationBundle: ~
AppBundle: ~
LilWorksStoreBundle: ~
online:
connection: online
mappings:
AppBundle: ~
LilWorksStoreBundle: ~
I copy some entities from the remote database to the local app within a service. My service get the two entity managers
services:
app.syncro:
class: AppBundle\Service\Syncro
arguments: ['#doctrine.orm.default_entity_manager','#doctrine.orm.online_entity_manager']
I clone the remote entity and I try to persist it in my local
$user = $this->emRemote->getRepository("AppBundle:User")->find(1);
$clonedUser = clone $user;
$this->emLocal->persist($clonedUser->cloneUser());
$this->emLocal->flush();
The flush don't persist in the local database but try to persist in the distant.
Is something in my configuration doesn't works? Maybe my entity still have the remote database name stored in proxy?