Custom validaton messages not working on Symfony 3 - php

Question

I have the following declaration in my user class (Symfony 3, it's an entity class):
/**
* #ORM\Column(type="string", length=128, unique=true)
* #Assert\NotBlank (
* groups={"registration"},
* message = "test"
* )
* #Assert\Email(
* message = "The email '{{ value }}' is not a valid email.",
* groups={"registration"}
* )
*/
private $email;
Everything works fine, except that I can't set a message, instead of my message ('test' for example) a default "This value should not be blank" is displayed.
Yes, I do have
framework:
validation: { enable_annotations: true }
In my config.yml
Edit: and yes I cleared cache by executing:
sudo php bin/console cache:clear
Edit2: Please note that it actually DOES go through validation, Symfony sees that the email is required, it displays a message if I leave the field empty, it's just that it is not my message, Symfony somehow doesn't see the "message" part.
Edit3: Now, after removing the groups={"registration"} part, as well as changing (in controller)
$errors = $validator->validate($user, null, array('registration'));
to
$errors = $validator->validate($user, null);
(removed array('registration'))
the correct message is displayed. However this is not a solution. I need to use groups.
Edit 4:
I'll get crazy...
If I enter no email, and then:
$validator = $this->get('validator');
$errors = $validator->validate($user, null, array('registration'));
dump($errors);
(Notice the "dump" function call) then I see an incorect message displayed on a page (This value should not be blank) but... when I enter the profiler->debug page (the dev tools at the bottom) then I can see that a correct (my) message is there...
Furthermore in profiler->form errors is this incorect message on the list (as only one item) but... it says it refers to a field named "plainPassword" which is not in the form, and does NOT belong to the "registration" group, so it should not be validated in the first place.
What's going on there?

Answer 1

Can You try this?
/**
* #ORM\Column(type="string", length=128, unique=true)
*
*
* #Assert\NotBlank(
* message = "The box cant be left blank")
*
*
* #Assert\Email(
* message = "The email '{{ value }}' is not a valid email."
*
* )
*/
private $email;