Gradle 2.7 does not resolve war file in nexus

I am working through the Manning in Action book, setting up a build pipeline.

I struck a bug in grade 2.7 when fetching an war artefact from a maven repository. It works with gradle version 2.6.

* What went wrong:
Could not resolve all dependencies for configuration ':todo-web:todo'.
> Could not find todo-web.war (com.manning.gia:todo-web:1.0.81).

Caused by: org.gradle.internal.resolve.ArtifactNotFoundException: Could not find todo-web.war (com.manning.gia:todo-web:1.0.81).
at org.gradle.internal.resolve.result.DefaultBuildableArtifactResolveResult.notFound(
at org.gradle.api.internal.artifacts.ivyservice.projectmodule.ProjectDependencyResolver.resolveArtifact(

If the artefact was uploaded as a jar file using grade 2.7 it could be fetched.