Using both the -as switches correctly does not output the same message twice to the same window if the active window is the Status window, however it should not happen if the active window is a @listbox:

//var %win @testwindow | window -c %win | window -le2 %win | echo -as test $active $asctime

edit: I've never used the dqwindow, but i noticed that, if $active is a #channel or @window editbox, "/echo -asd $asctime" does not echo to the active window, but -as and -ad both do. Apparently there's a limit of 2 targets.

Thanks this issue has been fixed for the next version.