Checksum validation doesn't fail the build for repository metadata files

mvn -C deploy

+ Enabling strict checksum verification on all artifact downloads.
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Unnamed - test:project_a:jar:2.0.2-SNAPSHOT
[INFO]    task-segment: [deploy]
[INFO] ------------------------------------------------------------------------
[INFO] [resources:resources {execution: default-resources}]
[WARNING] Using platform encoding (MacRoman actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/rseddon/test/foo/project_a/src/main/resources
[INFO] [compiler:compile {execution: default-compile}]
[INFO] Nothing to compile - all classes are up to date
[INFO] [resources:testResources {execution: default-testResources}]
[WARNING] Using platform encoding (MacRoman actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/rseddon/test/foo/project_a/src/test/resources
[INFO] [compiler:testCompile {execution: default-testCompile}]
[INFO] Nothing to compile - all classes are up to date
[INFO] [surefire:test {execution: default-test}]
[INFO] No tests to run.
[INFO] [jar:jar {execution: default-jar}]
[INFO] [install:install {execution: default-install}]
[INFO] Installing /Users/rseddon/test/foo/project_a/target/project_a-2.0.2-SNAPSHOT.jar to /Users/rseddon/.m2/repository/test/project_a/2.0.2-SNAPSHOT/project_a-2.0.2-SNAPSHOT.jar
[INFO] [deploy:deploy {execution: default-deploy}]
[INFO] Retrieving previous build number from foo
Uploading: http://localhost:8081/nexus/content/repositories/snapshots//test/project_a/2.0.2-SNAPSHOT/project_a-2.0.2-20090817.175509-6.jar
1K uploaded  (project_a-2.0.2-20090817.175509-6.jar)
[INFO] Retrieving previous metadata from foo
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = '1fee9c8f59bbb8457c230db81681cf98d90683d1'; remote = '07f4f4f5cc59ff10b1f71328abe8f61f6e56bdc0' - RETRYING
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = '1fee9c8f59bbb8457c230db81681cf98d90683d1'; remote = '07f4f4f5cc59ff10b1f71328abe8f61f6e56bdc0' - IGNORING
[INFO] Uploading repository metadata for: 'artifact test:project_a'
[INFO] Retrieving previous metadata from foo
[INFO] Uploading repository metadata for: 'snapshot test:project_a:2.0.2-SNAPSHOT'
[INFO] Uploading project information for project_a 2.0.2-20090817.175509-6
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2 seconds
[INFO] Finished at: Mon Aug 17 10:55:09 PDT 2009
[INFO] Final Memory: 9M/19M
[INFO] ------------------------------------------------------------------------