Question Migrate plesk switch dns-feature with slave dns plugin

[fliegerhermi]

Hi.
I am planing to migrate to Obsidian from Plesk Onyx using plesk migrator.
I am using plesk with the slave dns manager plugin which let's a vserver act as secondary dns.

Here is my question:
If I use migrate dns the destination server will act as master and the "old" pleks host as slave. What will happen with the secondary-dns in this case?

The registar knows "old primary dns" which is now secondary and "old secondary" which is now....?
Thanks!