Cannot rollback release if prepare failed before create-backup-poms

If the release prepare step failed before the create-backup-poms, e.g. during check-dependency-snapshots, you cannot rollback the changes: the HTTP request times out, and the error below appears in the log file:

BTW, the release:rollback mojo from maven-2.0.4 maven-release-plugin fails as well.

10626479 [pool-5-thread-1] ERROR org.codehaus.plexus.taskqueue.execution.TaskQueueExecutor:rollback-release - Error executing task
org.codehaus.plexus.taskqueue.execution.TaskExecutionException: Failed to rollback release
at org.apache.maven.continuum.release.executors.RollbackReleaseTaskExecutor.execute(RollbackReleaseTaskExecutor.java:45)
at org.apache.maven.continuum.release.executors.AbstractReleaseTaskExecutor.executeTask(AbstractReleaseTaskExecutor.java:67)
at org.codehaus.plexus.taskqueue.execution.ThreadedTaskQueueExecutor$ExecutorRunnable$1.run(ThreadedTaskQueueExecutor.java:116)
at edu.emory.mathcs.backport.java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:442)
at edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:176)
at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.maven.shared.release.ReleaseExecutionException: Cannot restore from a missing backup POM: /data01/continuum/work/6/pom.xml.releaseBackup
at org.apache.maven.shared.release.phase.RestoreBackupPomsPhase.restorePomBackup(RestoreBackupPomsPhase.java:90)
at org.apache.maven.shared.release.phase.RestoreBackupPomsPhase.execute(RestoreBackupPomsPhase.java:69)
at org.apache.maven.shared.release.DefaultReleaseManager.rollback(DefaultReleaseManager.java:248)
at org.apache.maven.continuum.release.executors.RollbackReleaseTaskExecutor.execute(RollbackReleaseTaskExecutor.java:40)
... 7 more