uploads with null characters in debian/copyright get rejected

Traceback (most recent call last):
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/archiveuploader/nascentupload.py", line 710, in do_accept
    self.storeObjectsInDatabase(build=build)
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/archiveuploader/nascentupload.py", line 812, in storeObjectsInDatabase
    sourcepackagerelease = self.changes.dsc.storeInDatabase(build)
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/archiveuploader/dscfile.py", line 721, in storeInDatabase
    buildinfo=buildinfo_lfa,
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/registry/model/distroseries.py", line 1215, in createUploadedSourcePackageRelease
    buildinfo=buildinfo)
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/soyuz/model/sourcepackagerelease.py", line 147, in __init__
    self.copyright = copyright
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/soyuz/model/sourcepackagerelease.py", line 173, in copyright
    (content, self.id))
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/store.py", line 109, in execute
    return self._connection.execute(statement, params, noresult)
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/databases/postgres.py", line 306, in execute
    return Connection.execute(self, statement, params, noresult)
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/database.py", line 241, in execute
    raw_cursor = self.raw_execute(statement, params)
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/databases/postgres.py", line 316, in raw_execute
    return Connection.raw_execute(self, statement, params)
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/database.py", line 372, in raw_execute
    self._prepare_execution(raw_cursor, params, statement)
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/database.py", line 404, in _prepare_execution
    statement, params or ())
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/database.py", line 454, in _check_disconnect
    return function(*args, **kwargs)
  File "/srv/launchpad.net/production/launchpad-rev-19044/env/local/lib/python2.7/site-packages/storm/tracer.py", line 248, in trace
    attr(*args, **kwargs)
  File "/srv/launchpad.net/production/launchpad-rev-19044/lib/lp/services/webapp/adapter.py", line 684, in connection_raw_execute
    statement, tuple(connection.to_database(params)))
ValueError: A string literal cannot contain NUL (0x00) characters.

Fixed in stable r19046 <http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/19046>.