Comment 9 for bug 1702527

Worked around it by making a temporary fabric and moving subnets onto that fabric's default vlan. Then updating in place rather than deleting/creating.

https://git.launchpad.net/~lutostag/cpe-foundation/commit/?id=72022fa1db17f3baa1ee8b6fee2b5947ca4210db

So not a blocker for us at the moment.