Follow-up to #2260061-297: Responsive image module does not support sizes/picture polyfill 2.2
- 'attributes' stays in the $variables array that gets passed to responsive-image.html.twig, and is thus *also* printed as {{attributes}} on the picture tag ? I'd tend to agree with @attiks in #298.2 that we don't necessarily need to support attributes on the picture tag, but even if we do, it can't just be the same ones the than those of the img ;-)