Discontinuities after detach

[AndyTWF]

At the moment, we emit discontinuity events after attaching channels after explicitly detaching them.

Should we forgo these events if the channel has been detached explicitly?

┆Issue is synchronized with this Jira Task by Unito

[sacOO7]

We emit reason:? ErrorInfo as a part of discontinuity.
Why not include the reason as explicitly detached while emitting discontinuity event, wdyt

[sacOO7]

At the same time, I would argue not to expose a lot of internal stuff, where customers need to add extra checks for discontinuity error type.
It would make sense only to emit discontinuity when it happens 👍 ( when there is no explicit user intervention)