Erm, where did you look?! This was already fixed three years ago in bug 440635 (http://hg.mozilla.org/comm-central/rev/0b9574280e22)...
I looked in MXR, on the seamonkey tree, here: https://mxr.mozilla.org/seamonkey/source/mailnews/base/search/public/nsMsgFilterCore.idl#52 It's certainly odd (and kinda alarming) that what shows up there is apparently 3 years out of date! Sorry for the bugspam.
(In reply to Jesse Weinstein from comment #2) > I looked in MXR, on the seamonkey tree, here: > https://mxr.mozilla.org/seamonkey/source/mailnews/base/search/public/ > nsMsgFilterCore.idl#52 It's certainly odd (and kinda alarming) that what > shows up there is apparently 3 years out of date! Sorry for the bugspam. That tree is for the old CVS source, see the description at https://mxr.mozilla.org: "This the old code in CVS for Gecko, XULRunner, Firefox, Thunderbird, Calendar, Camino, and SeaMonkey. For Gecko, XULRunner, and Firefox. CVS trunk is only used for Gecko 1.9.0 / Firefox 3 and the 1.9.0.* / 3.0.* security releases. " What you want is https://mxr.mozilla.org/comm-central/