Bug fix, the logic to detect mutable constants was broken.
Bug fix, the logic to detect mutable constants was broken.

wfxiang08/Nuitka,wfxiang08/Nuitka,kayhayen/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,wfxiang08/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka