symfony/symfony — pull request #10277 by francoispluchino (2014-02-17 12:35:24+00:00)
Title: [Bug][Form] Fix W3C markup validation of the empty select option tag

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

To spend the HTML5 W3C validation, the Option tag can not have a empty label. it's therefore necessary to add Label attribute.