I'm trying to copy the array of labels from the original issue (when creating a new issue) _and_ add a new label at the same time... it seems to allow copy of old but not add at same time. I can get it to "add" two smart variables and have a variable for each of these, but the one is an array... and it gives formatting errors because it's not proper json when I add them next to each other. Is there a way to concatenate an item in to issue.labels.asJsonStringArray so it outputs one proper list?