Menu in window

[Germán Arias]

If you minimize the main window while a submenu is displayed, the app is
minimized at taskbar (on Gnome) no in a miniwindow. But when you
deminimize this window, the submenu is stuck. If you select other option
at menu, then you can see two submenu displayed at same time. I try
solved this with adding:
 
[[[NSApp mainMenu] attachedMenu] close];

at method -minimize: in NSWindow.m source file. But don't work. Some
suggestion to solve this issue?