PoolFileOverwriteError raised by publish-ftpmaster.py

OOPS-01a0d89ea9b682cce23e596c7cfed0f7

 Traceback (most recent call last):
  Module lp.soyuz.model.publishing, line 314, in publish
    pub_file.publish(diskpool, log)
  Module lp.soyuz.model.publishing, line 176, in publish
    component, source, filename, sha1, filealias)
  Module lp.archivepublisher.diskpool, line 443, in addFile
    return entry.addFile(component, sha1, contents)
  Module lp.archivepublisher.diskpool, line 196, in addFile
    self.pathFor(self.file_component)))
PoolFileOverwriteError: 92c921c793d4f95ec628f28ecb98cfdac50b61c7 != f6dd336dab9bd75d34ceefcb8bdfaf0348b51f2d for /srv/launchpad.net/ubuntu-archive/ubuntu/pool/main/l/language-pack-kde-ru/language-pack-kde-ru_12.04+20120130_all.deb

path: /srv/launchpad.net/codelines/current/cronscripts/publish-ftpmaster.py
script_name: processaccepted