Comment 1 for bug 1766680

Issue wans't present on d6fef78f1 but present on b08e4a321:

commit b08e4a321e661a140b411a17fb53336c770e9265
Author: Alberto Donato <email address hidden>
Date: Tue Apr 24 13:08:46 2018 +0000

    backport some of the template/js logic for resource pool to free repo

commit aa8897209f46f7f50ee2d1b3fa5774f66a0f633d
Author: Lee Trager <email address hidden>
Date: Fri Apr 20 22:06:12 2018 +0000

    LP: #1754334 - Fix Javascript error when loading interfaces tab.

    Before new interfaces have been added they are set to {}. On page load all
    interfaces are validated including new interfaces. Ignore validation on new
    interfaces as the object must be fully defined.

My guess is that the regression is b08e4a321e661a140b411a17fb53336c770e9265