`clearOnUnmount` not working?

Hey there, thanks so much for your work on this!

I see in your documentation that clearOnUnmount should allow identical messages to be repeated. This is something we'd like to accomplish in a feature where a small toast element should be repeatedly visible if another element is focused. I see that there is handling for re-calculating the ids, but it doesn't appear as though those ids make their way into the messages that get rendered here:

react-aria-live/src/modules/Announcer.js

Line 76 in 0e39985

I'm setting clearOnUnmount but the messages do not appear to rebroadcast using VoiceOver in Chrome. Could you help get me moving in the right direction?

Same here