fix: destroyed async/await handler

[misyuari]

Pre-Submission Checklist

• [x] Opened an issue discussing these changes before opening the PR
• [x] Ran the linter and tests via make prepush
• [x] Included comprehensive and convincing tests for changes

Issues

Closes:

• Issue #1941

Changes

Fix unstopped chain-handler when response already destroyed.

[gmahomarf]

I'm not sure how this fixes #1935. The issue there is that one is no longer allowed to have async handlers which also call next, due to handler arity checks.

[misyuari]

I'm not sure how this fixes #1935. The issue there is that one is no longer allowed to have async handlers which also call next, due to handler arity checks.

oh that was my fault, looks like it's a different issue, I've created a new issue

[misyuari]

can you add tests?

done, test added