Auto-populate description (or preview) based on scripted field

[Berry Kersten]

Current situation:

Transition screen with a scripted field (issue picker) "Existing Reported Issue", and a 'normal' custom field "Public bug description":

Is it possible to auto-populate "Public bug description" based on the issue picked at "Existing Reported Issue"?

So, for example:

- chosen "Existing Reported Issue" has description "XYZ"

- Public bug description will be auto populated "XYZ"

- if another Existing Reported Issue is chosen, the Public bug description will be "overwritten".

If that's not possible, some kind of preview of the Description field is also fine.

Thanks!