Bug: [v5] callback actor isn't getting cleaned up when another actor is spawned

[rostero1]

Description

In the following example you'll see that the existence of otherRef prevents the socketRef's cleanup from being executed. This is made more evident by assigning socketRef a systemId.

Expected result

No errors and the cleanup function of socketRef to be executed.

Actual result

• An error: Actor with system ID 'next' already exists.
• Cleanup function isn't called, which is evident by the logs.

Reproduction

https://stackblitz.com/edit/stackblitz-starters-u8lam3

Additional context

No response

[Andarist]

Thanks for testing out v5 and reporting the problem! I see what's going wrong, gonna fix this in a moment.