Version:            (using KDE 4.3.4)
Compiler:          gcc 4.4.2 
OS:                Linux
Installed from:    Archlinux Packages

I'd like to hide a specific Kopete window from the taskbar (a chat window from a particular contact). I create a window rule by detecting that window, set a specific window title and some other preferences.
The window role is detected as MainWindow#2 , however, when I save this, this transformed into mainwindow#2. The rule will no longer match that window.
I'll leave it up to you where to fix this, in the code which does the rule matching, or in the code which takes care of saving the data. I had a quick look at the latter part, but couldn't immediately see where the window role is turned into lowercase.