Scheduling a post trigger an InternalServerError

Issue Summary
When I try to schedule a post for later I have an InternalServerError.


Setup information

Ghost Version
v4.32.0

Node.js Version
v14.18.1

How did you install Ghost?
I installed Ghost on my local server with the CLI.

Provide details of your host & operating system
ArchLinux

Database type
MariaDB 10.6.5 (MySQL 8)

Relevant log / error output

[2022-01-12 15:05:23] ERROR "PUT /ghost/api/canary/admin/posts/61dee0171172faddd7965285/?email_recipient_filter=none" 500 1359ms

NAME: InternalServerError
MESSAGE: Cannot read property 'id' of undefined

level: critical

TypeError: Cannot read property 'id' of undefined