QMenu Action is not triggered by numeric mnemonic entered on keypad

When a menu item have a digit as mnemonic ( like "&1 - c:
filename.tmp" e.g. in recent-files-submenu) then the action is not triggered with the digit if it is entered on the numeric key-pad.
After reading the code in qmenu.cpp it is obvious why nothing happens, because the QKeyEvent has the modifier Qt::KeypadModifier, so the if-condition doesn't match.

It would be easy to add these keys to be handled, but i'm wondering, if there is a special reason to exclude all keys on the keypad to act as menu-item mnemonic?