Good catch. But unfortunately there's already a PR (see#3345).

Yeah you're right, I didn't see this one.

@xabbuh@wouterj@weaverryan: maybe PRs and issues titles should be prefixed by something like the first two levels of the hierarchy (i.e.[Cookbook][Assetic],[Book][Assetic] etc.) in order to avoid duplicate PRs?

For example the documentation for contributing to the core code state that:

To ease the core team work, always include the modified components in yourpull request message, like in:    [Yaml] fixed something    [Form] [Validator] [FrameworkBundle] added something

But there is no such thing for the documentation.