Multicheckbox updates dirty state only after the modelChange event has finished firing

[snekku-dev]

Description
Bootstrap multicheckbox field updates dirty state only after the modelChange event has fired, unlike other fields

Minimal Reproduction
app:
https://angular-ivy-z1eghs.stackblitz.io

editor:
https://stackblitz.com/edit/angular-ivy-z1eghs?file=src/app/app.component.ts

Your Environment

• Angular version: 12.1.0
• Formly version: 5.12.0

Additional context
I noticed this behavior when trying to capture and filter fields in a dirty state inside a modelChange event, all the fields I am using in my form are already dirty when the event fires, while multicheckbox is still pristine and turns dirty only afterwards keeping me from intercepting it as a dirty control during a modelChange event

[aitboudad]

This issue has been fixed and released as part of v5.12.3 and v6.0.0-beta.2 release.

Please let us know, in case you are still encountering a similar issue/problem.
Thank you!