v11.6.0 Route Domain Behaviour Change

From the release notes of v11.6.0:

 

ID 436518

 

Here is a description of the new behavior for route domains:

 

(1) If only the destination route domain (RD) changes, the system automatically changes the RD on the source address.

 

(2) The system never automatically changes the destination RD (even if only the source RD changed).

 

(3) If both source and destination RD are different, this is an error.

 

(4) On a create, if the source address is not specified, it defaults to 0.0.0.0 and inherits the RD from the destination.

 

(5) On a create, if both source and destination are specified, then both must explicitly specify the same RD, except when using the default route domain (DRD).

 

(6) When the RD is omitted, the system uses the DRD. Therefore, if an RD is explicitly specified on either the source or the destination, and it is excluded on the other, then that specified RD must match the DRD

 

Can somebody give some specific use cases that are affected by this change? Really arcane reading this is for upgrade preparations.

 

And has anybody got any warning about their config related to this issue through ihealth?