[Zope-dev] Fwd: [Zope-Checkins] SVN: Zope/trunk/ - using a local copy of bootstrap.py

Hi, I've just found this old checkin: http://www.mail-archive.com/zope-checkins@zope.org/msg04196.html . Can someone please explain me very briefly (or point out some documentation), why is it better to store a copy of bootstrap.py in every package instead of using svn:external? Sorry if this is not the right place to ask this. Thanks, Attila