Fix, accessing the "__module__" attribute should not affect "__dict__"
Fix, accessing the "__module__" attribute should not affect "__dict__"

* It needs to be stable according to "is", therefore the interning
  which avoids using "__dict__" for the purpose.

* No test exists for the issue, it is likely of very low importance.

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