Lp janitor switches the name and email fields when there are dots in the uploader's name, in changelog entries.
This always happens to any upload I do irrespective of me using bzr or a debdiff for the upload:
https://launchpad.net/ubuntu/maverick/+source/humanity-icon-theme/+changelog [always use bzr for these]
https://launchpad.net/ubuntu/+source/system-config-printer/1.2.3+20100723-0ubuntu3 [debdiff]
It also happened for this uploader whose name has a dot too:
https://launchpad.net/ubuntu/+source/acm/5.0-27ubuntu2
To note is that the changelog entries are uploaded correctly, but only lp janitor seems to switch them in launchpad mentions everywhere [while closing bugs, and other changelog mentions in lp].
And there is no such problem when viewing the changelog either from synaptic[download changelog] or while viewing the changelogs in the system.
It just seems that lp janitor doesnt like uploaders with dots in their names. ;-)
Interestingly, this seems to be deliberate:
def fix_maintainer(
"""Parses a Maintainer or Changed-By field and returns:
(1) an RFC822 compatible version,
(2) an RFC2047 compatible version,
(3) the name
(4) the email
The name is forced to UTF-8 for both (1) and (3). If the name field
contains '.' or ',', (1) and (2) are switched to 'email (name)' format.
"""
But there's no rationale given, and none is obvious to me.