Artifacts from dependencyManagement imported pom not resolved

ShrinkWrap's Maven Dependency Resolver (version 1.0.0-beta-5, also tested with 1.0.0-beta-6) fails to resolve artifacts where the version is specified by an imported bom in the dependencyManagement section, or where the artifact isn't in central even if it's in a repo listed by the project's pom.xml.

See the attached self contained test case. Examine DemoTest.java; you'll see two different artifact co-ordinates for Seam 3 Security, neither of which works. The project's pom finds seam 3 security fine via the imported seam 3 bom, but the shrinkwrap dependency resolver doesn't even after loading the project's pom.xml via configureFrom(...) .

If I use the co-ordinates:
org.jboss.seam.security:seam-security
ShrinkWrap fails with:
java.lang.IllegalArgumentException: Bad artifact coordinates, expected format is <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>

if I specify a version explicitly (which shouldn't be necessary since it's in the seam 3 bom imported via dependencyManagement) it instead says it can't find the artifact in Central, even though the jboss repo is listed in pom.xml:

org.jboss.seam.security:seam-security:3.1.0.Final

produces:

org.sonatype.aether.transfer.ArtifactNotFoundException: Could not find artifact org.jboss.seam.security:seam-security:jar:3.1.0.Final in central (http://repo1.maven.org/maven2)