Jackalope.Handler.connection/1 unexpectedly received :terminated

[coop]

Jackalope.Handler.connection/1 callback says only :up and :down are expected - https://github.com/smartrent/jackalope/blob/main/lib/jackalope/handler.ex#L26C24-L26C45 but in production I received :terminated.

Is this expected and undocumented or a bug?

[coop]

Quick follow up - I think it comes from here. Controller subscribes to events which calls the handler which the Jackalope handler is wrapping.