this should already work, see https://github.com/tigase/beagle-im/commit/efd78c198ef2f057fdf44c9b63b56fd9c1fbfb3a and issue #472

I'm on 5.3.4 (176) and just got a bunch of spam (both presence and messages) and I'm fairly certain I didn't see account name in the presence sub form.

I just checked and I think there is a bug:

1. add user wojtek@sure.im to account wojtek@xmpp.cloud

2. following presence sub is received:

<!--   2023-04-19T19:19:16Z   <<<<   -->
<presence type='subscribe' to='wojtek@sure.im' xmlns='jabber:client' from='wojtek@xmpp.cloud'/>

3. dialog shows the same JID as the account owner:

"Authorise wojtek@xmpp.cloud

Do you want to allow access to your online status and associated data for account wojtek@xmpp.cloud?"

Btw. I think we could improve wording/presentation (JIDs in bold, requesting JID repeated, added "for"):

"Do you want to allow wojtek@xmpp.cloud to access to your online status and associated data for your account wojtek@xmpp.cloud?"

Fix released in the new beta build 5.3.5-b177