I have a dependency on two jars, one with a classifier and one without. When a new SNAPSHOT version is published the jar with the classifier is not updated in my local Ivy cache.

Steps to reproduce:

1. setup my project dependency
   libraryDependencies += "group" %% "artifactA" % "1.0.0-SNAPSHOT" withSources() classifier("test") classifier("")
2. sbt update -- project is updated and both the jars are downloaded
3. publish a new version of 'artifactA' (a different project)
4. sbt update -- updated my project that has a dependency on 'artifactA'

The result is that group-artifactA_2.9.1-1.0.0-SNAPSHOT.jar is updated, but group-artifactA_2.9.1-1.0.0-SNAPSHOT-test.jar is not.

The expected result is that both jars are updated:

• group-artifactA_2.9.1-1.0.0-SNAPSHOT.jar
• group-artifactA_2.9.1-1.0.0-SNAPSHOT-test.jar

I have been using sbt 0.12.1. This issue has also been confirmed to to exist in 0.12.2-RC2 and the 0.13 branch.