Hi,

For information, with the validation of my IDE, I receive the following error on the Symfony's source

File:
Symfony/vendor/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd

Line:
20

Description:
cos-nonambig: WC[##other:"http://symfony.com/schema/dic/services"] and WC[##other:"http://symfony.com/schema/dic/services"](or elements from their substitution group) violate "Unique Particle Attribution". During validation against this schema, ambiguity would be created for those two particles.