Symfony version(s) affected

All

Description

If a kernel.terminate listener throws an exception, HttpKernel ends up dispatching kernel.exception again.

Then, if a kernel.exception listener sets a response, kernel.response is redispatched a second time while the response has already been sent (a lot of "useless" code is executed).

Finally, kernel.finish_request is always redispatched a second time.

How to reproduce

Throw an exception in a kernel.terminate listener.

Possible Solution

1. I think dispatching kernel.exception again can make sense. But we should stop there.

2. We can also stop before dispatching it.

Also if this is really a wrong behavior, the subject is probably sensible, I don't think we can treat it as real a bug fix, we would need to deprecate it first.

Additional Context

No response