Steps to reproduce:

Go to /people/admin.html

Add a section or navigate to an already added section.

In a section, select 'Add'->'Column' from pulldown. You will be redirected to /people/

bin/buildout -U
Getting distribution for 'mr.developer'.
build/bdist.linux-x86_64/egg/mr/developer/svn.py:69: SyntaxWarning: name '_svn_version_warning' is used prior to global declaration
global _svn_version_warning
/home/pyvenv/usr/lib/karl3/eggs/tmpUp78Cm/mr.developer-1.16-py2.6.egg/mr/developer/svn.py:69: SyntaxWarning: name '_svn_version_warning' is used prior to global declaration
global _svn_version_warning
/home/pyvenv/usr/lib/karl3/eggs/mr.developer-1.16-py2.6.egg/mr/developer/svn.py:69: SyntaxWarning: name '_svn_version_warning' is used prior to global declaration
global _svn_version_warning
/home/pyvenv/usr/lib/karl3/eggs/mr.developer-1.16-py2.6.egg/mr/developer/svn.py:69: SyntaxWarning: name '_svn_version_warning' is used prior to global declaration
global _svn_version_warning
Got mr.developer 1.16.
Getting distribution for 'argparse'.
zip_safe flag not set; analyzing archive contents...
Got argparse 1.1.
mr.developer: Queued 'ariadne' for checkout.
mr.developer: Queued 'eurasia' for checkout.
mr.developer: Queued 'karl' for checkout.
mr.developer: Queued 'karl.external_link_ticket' for checkout.
mr.developer: Queued 'karlserve' for checkout.
mr.developer: Queued 'osi' for checkout.
mr.developer: Queued 'ospc' for checkout.
mr.developer: Queued 'oxfam' for checkout.
mr.developer: Cloned 'karlserve' with git.
mr.developer: git cloning for 'karlserve' failed.
mr.developer: Permission denied (publickey).
mr.developer: fatal: The remote end hung up unexpectedly
mr.developer:
mr.developer: Cloned 'ariadne' with git.
mr.developer: git cloning for 'ariadne' failed.
mr.developer: Permission denied (publickey).
mr.developer: fatal: The remote end hung up unexpectedly
mr.developer:
mr.developer: Cloned 'eurasia' with git.
mr.developer: git cloning for 'eurasia' failed.
mr.developer: Permission denied (publickey).
mr.developer: fatal: The remote end hung up unexpectedly
mr.developer:
mr.developer: Cloned 'karl' with git.
mr.developer: git cloning for 'karl' failed.
mr.developer: Permission denied (publickey).
mr.developer: fatal: The remote end hung up unexpectedly
mr.developer:
mr.developer: Checked out 'karl.external_link_ticket' with subversion.
mr.developer: Subversion checkout for 'karl.external_link_ticket' failed.
mr.developer: svn: To better debug SSH connection problems, remove the -q option from 'ssh' in the [tunnels] section of your Subversion configuration file.
mr.developer: svn: Network connection closed unexpectedly
mr.developer:
mr.developer: There have been errors, see messages above.

It's Python-2.6

Is the former a decoy? (It has a testing comment that suggests it might be.)

Each new release gets a new cache, which is wasteful and can lead to a disk-full situation if releases aren't cleaned up.

Someone need to kick the server?