Filter Referenced GuidRef Objects

Using the OneRoster API, I am trying to include a filter parameter in my request to the classes endpoint for the ‘terms’ field, which is an array of GuidRef objects.

I'm able to filter a single GuidRef object property like:
/classes?filter=school.sourcedId='org-sch-###-###'

And able to filter an array property like:
/classes?filter=subjects~'Science'

But filtering an array of GuidRef is returning an empty array of classes:
/classes?filter=terms.sourcedId~'as-trm-###-######'

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