copy/paste does not change ownership

[geoffd]

When you copy an object owned by someone else and then paste it, the new object is still owned by the original object's owner rather than by the user who pasted the object. I think the easiest way to fix this is by modifying manage_afterClone in SimpleItem.py so that it calls changeOwnership on the new object and adds the Owner local role for the currently authenticated member to the object.

[Andreas Jung (ajung)]

I think there are two usecases:

1) You are logged in as Manager to perform some copy operations
   for maintenance. Then the required behaviour is to do not
   change the ownership

2) You are logged as "normal" (but not as Manager) and you
   have the permission to copy files around. In this case
   your usecase might be wishful to be supported.

But I have no idea to bring these policies together without
breaking the existing behaviour.

[Tres Seaver (tseaver)]

On any modern Zope, the call to the container's '_setObject' method
inside 'manage_pasteObjects' leaves the 'set_owner' flag True (the default),
which results in having the executable ownership fixed up.