useToast leaves artifacts after disappearing that overlay page controls

[mjw-isp]

https://isp-stage.app.istreamplanet.com/promotion/pages

create page

create layout

add collection

done

save

(do not click toast - allow it to disappear on its own)

attempt to click the pages breadcrumb (this can also be seen in collections following a similar workflow)

[mjw-isp]

invalid