I'm building an automation that creates a new ticket based on ticket activity. I'd like to copy the labels from the trigger issue and also add a new label to the newly created one.
With using the Add Labels from Trigger issue (by selecting the Copy -> select Add to existing values):

and trying to set the labels in the Additional fields section:

I'm getting the following error:
Field 'labels' cannot appear in both 'fields' and 'update'.
So to sum up: my goal is to create a new ticket based on ticket update activity and copy the existing labels and also add a new label to the new ticket.
Do you know how to do it?