Bolean Expression for validator does not work

Description

We want ti use a Bolean Expression to prevent users without the proper role(s) to be able to create an issue.
We came up with:
[roles]="role_name_1" OR [roles]="role_name_2" must evaluate to "true"

.....Unfortunately this does not work.
Any ideas?

Environment

None

Status

Assignee

Unassigned

Reporter

Marcel Plomp

Labels

None

Affects versions

Priority

Critical
Configure