If there are multiple video/audio items on a canvas that each have choices with choiceHint=user and matching labels, what is the expected client behavior?

[zimeon]

For example, if there are labels "High quality" and "Low quality", should a view assume that a single user choice should be used for other items on the canvas? Should this be propagated from canvas to canvas in a manifest if the matching conditions still hold?

Related, should this also apply to choices in the Presentation API for images only? For example, if there are visible light and x-ray choices for multiple pages, should that choice carry through as the user pages through a book?

(From discussion at AV session 2017 IIIF Vatican Conference)

[azaroth42]

If this is to be a feature, then it shouldn't be based on matching labels (which could have translations, etc etc) but on some identifier.