I created the bugzilla user Nicolas.Mailhot some time ago and used it to open a few bugs. Now at during a period bugzilla translated Nicolas.Mailhot to nicolas.mailhot when opening a bug. So there is now quite a few bugs opened by "nicolas.mailhot" in the system. When I modify these bugs bugzilla considers I am *not* their rightful owner (ie I can add comments but not change severity/component/close them). They are not returned by my stored query https://bugzilla.redhat.com/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&email1=Nicolas.Mailhot%40laPoste.net&emailtype1=exact&emailassigned_to1=1&emailreporter1=1 This is a major PITA. Mails should really not be case-sensitive for bugzilla - they are not in real life.
Red Hat's current Bugzilla version is 2.18. I am moving all older open bugs to this version. Any bugs against the older versions will need to be verified that they are still bugs. This will help me also to sort them better.
Red Hats bugzilla now treats all usernames as lowercase. So it is not possible to have two accounts with mixed case any longer.