Failed to add multiple zone-transfer addresses in IdM managed DNS zone

Issue

• Need to add multiple zone-transfer IP addresses in IdM managed DNS zone to: 192.168.10.20 and 192.168.30.40
• Followed example in Product Documentation¹ to enable zone-transfer with command line: ipa dnszone-mod example.com. --allow-transfer=192.168.10.20;192.168.30.40

• Only one IP address was added successfully

  # ipa dnszone-mod example.com. --allow-transfer=192.168.10.20;192.168.30.40
  Zone name: example.com.
  Active zone: TRUE
  Authoritative nameserver: ipa.example.com.
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1602066022
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Allow query: any;
  Allow transfer: 192.168.10.20;             <=== Only one IP address was added
  

• Multiple IP addresses can be added via Web UI successfully