False positive, removed super interface when class still indirectly extends interface

[lbergelson]

We saw a false positive report of source / binary incompatibility

The class in question directly extended the interfaces Feature and Locatable

We had a hierarchy like this:

interface Locatable
interface Feature extends Locatable
class Interval implements Locatable, Feature

In a new version we changed Interval so it no longer directly extends Locatable but still extends it through Feature.

We (incorrectly) get the following error:
High severity: Removed super-interface Locatable.