Pull the GlobalDocumentReference values out of doc.ref /
subject / doc.refs (content) field entries. Content only — release
field entries come from the shared release-ref projection, so guard discovery (which
reads this via collectEntryDocUris) stays scoped to content docs.
Pull the GlobalDocumentReference values out of
doc.ref/subject/doc.refs(content) field entries. Content only — release field entries come from the shared release-ref projection, so guard discovery (which reads this viacollectEntryDocUris) stays scoped to content docs.