bug #16806 [Validator] BicValidator - fixed raising violations to a maximum of one (mvhirsch)

This PR was merged into the 2.8 branch.

Discussion
----------

[Validator] BicValidator - fixed raising violations to a maximum of one

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | none
| License       | MIT
| Doc PR        | none

I just found a bug while using the constraint. For example my value "a" will raise three violations at one time. I just expected to get a maximum number of one.
This PR will fix that behavior.

I do not know how I can easily add Unit-Tests for that, can someone please help me?

Commits
-------

7860bb4 [Validator] fixed raising violations to a maximum of one

src/Symfony/Component/Validator/Constraints/BicValidator.php

@@ -38,6 +38,8 @@ class BicValidator extends ConstraintValidator
                 ->setParameter('{{ value }}', $this->formatValue($value))
                 ->setCode(Bic::INVALID_LENGTH_ERROR)
                 ->addViolation();
+
+            return;
         }
 
         // must contain alphanumeric values only
@@ -46,6 +48,8 @@ class BicValidator extends ConstraintValidator
                 ->setParameter('{{ value }}', $this->formatValue($value))
                 ->setCode(Bic::INVALID_CHARACTERS_ERROR)
                 ->addViolation();
+
+            return;
         }
 
         // first 4 letters must be alphabetic (bank code)
@@ -54,6 +58,8 @@ class BicValidator extends ConstraintValidator
                 ->setParameter('{{ value }}', $this->formatValue($value))
                 ->setCode(Bic::INVALID_BANK_CODE_ERROR)
                 ->addViolation();
+
+            return;
         }
 
         // next 2 letters must be alphabetic (country code)
@@ -62,6 +68,8 @@ class BicValidator extends ConstraintValidator
                 ->setParameter('{{ value }}', $this->formatValue($value))
                 ->setCode(Bic::INVALID_COUNTRY_CODE_ERROR)
                 ->addViolation();
+
+            return;
         }
 
         // should contain uppercase characters only
@@ -70,6 +78,8 @@ class BicValidator extends ConstraintValidator
                 ->setParameter('{{ value }}', $this->formatValue($value))
                 ->setCode(Bic::INVALID_CASE_ERROR)
                 ->addViolation();
+
+            return;
         }
     }
 }