Per summary, $evm.execute('create_provision_request', *args) should be able to handle setting multiple tag values.
Please assess the impact of this issue and update the severity accordingly. Please refer to https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity for a reminder on each severity's definition. If it's something like a tracker bug where it doesn't matter, please set it to Low/Low.