Comment 8 for bug 1899706

To add to my last comment, in theory changing the request ID to be the relation ID should be as simple as adding a `request_id=relation.relation_id` param to [1] and I *think* it might even handle upgrades fine, too, since it selects the request to update based on the `job_name` field rather than the request ID. However, I'm probably missing something in how that would actually be handled on one side or the other if the request ID for an existing request is changed, so that would definitely need some testing.

[1]: https://github.com/juju-solutions/interface-prometheus-manual/blob/master/provides.py#L37-L41