I've been reading through the UMA docs more, and yes it seems like [I should be expecting some kind of ticket back](https://docs.kantarainitiative.org/uma/draft-uma-core.html#rfc.section.3.1.1). So either Gluu has a bug, or I'm missing some Gluu configuration option to enable this behavior.
I've got kind of a hard deadline on this, so any help would be appreciated. Thanks!