Bulk Action Notifications and not selecting an option mutes selected topic for User

Is this fix expected to be in 3.5.0.beta8-dev (0f2996a3b3)?

I successfully upgraded my server to this level but I am still seeing the “Confirm” button enabled and when I click it the threads are no longer going to “muted” state (which is good!), however I receive a couple of these ugly error pop ups when clicking “Confirm”. I’m attaching the browser console logs in case that is helpful.
forums.packfansnation.com-1751029729681.txt (8.8 KB)

(Edit: Also (apologies as I’m very fresh to discourse ecosystem) I’m not unsure of the process for re-opening a bug. I see this is marked as fixed/completed so hopefully this is okay to just reply here, if not I’m happy to open a new bug topic)