Problem

Root zone and global forwarding configuration produces inconsistent results when forwarding configuration is changed at run-time or when the root zone is deleted.

Steps to Reproduce

• Configure global forwarder in idnsConfig object
• Verify that the global forwarder works
• Configure DNS root zone and configure forwarding for it
• Add a NS + glue records to the root zone so forwarding can work for a sub-tree
• Verify that forwarding works as specified for given sub-tree of root zone
• Change global forwarder in idnsConfigObject and see that forwarding from root zone does not respect configuration from root zone anymore

Alternative

• Configure global forwarder in idnsConfig object
• Verify that the global forwarder works
• Add root zone
• Delete root zone
• Global forwarder will stop working

Environment

• Plugin version: 8.0+

I believe that this is the case in all versions which support DNS root zone in LDAP.