Comment 1 for bug 1592355

If User will change interfaces of a deployed node, he won't be able to start the node redeployment or redeployment of the entire cluster because UI doesn't know if changes were made in node settings and doesn't show Deploy Changes button on Dashboard.

So, this UX should be designed properly and Nailgun changes are required also.

That's why the issue won't be fixed in 9.0.