WinTitleMatchMode and Case Sensitivity

[jdegraff]

I created a quick script to set/clear the topmost status of a window. It works like

    top <title> /on | /off
    
I want the title match to be case insensitive and to work on partial strings. For example, if the window of note is titled "APLX for Windows" I want

    top apl /on
    
to work. The AutoIt manual says that for WinTitleMatchMode

    Mode -1 to -4

        Force lower case match according to other type of match.

so I assumed that by

    aut.Opt "WinTitleMatchMode",-1
    
I would be doing a lower case match on existing windows. As long as I lcase(title) for the comparison it should match on "APLX for Windows" but it does not Is this a bug or am I misreading the docs?