[medusa] strangeness in zope's version of ftpserver.py

[Robin Becker]

I'm using the medusa version distributed with the latest Zope and notice
that ftpserver.py seems to have two versions of the close method for
ftp_channel. 

Reason I'm interested is that I'm using the ftp server and seem to
observe that abruptly killing an ftp client seems not to increment the
closed_sessions_total counter thus leaving the open sessions count at 1
even when I don't have an active client.

Has the session actually been closed?
-- 
Robin Becker