bug #9850 [Validator] Fixed IBAN validator with 0750447346 value (stewe)

This PR was merged into the 2.3 branch.

Discussion
----------

[Validator] Fixed IBAN validator with 0750447346 value

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
-------

cf88ba5 [Validator] Fixed IBAN validator with 0750447346 value

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

@@ -30,6 +30,13 @@ class IbanValidator extends ConstraintValidator
             return;
         }
 
+        // An IBAN without a country code is not an IBAN.
+        if (0 === preg_match('/[A-Za-z]/', $value)) {
+            $this->context->addViolation($constraint->message, array('{{ value }}' => $value));
+
+            return;
+        }
+
         $teststring = preg_replace('/\s+/', '', $value);
 
         if (strlen($teststring) < 4) {

src/Symfony/Component/Validator/Tests/Constraints/IbanValidatorTest.php

@@ -181,6 +181,7 @@ class IbanValidatorTest extends \PHPUnit_Framework_TestCase
             array('CY170020 128 0000 0012 0052 7600'),
             array('foo'),
             array('123'),
+            array('0750447346')
         );
     }
 }