ange-ftp save-buffer bug in 21.2

[jdhunter]

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In GNU Emacs 21.2.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-04-29 on mother.paradise.lost
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  value of $LC_CTYPE: C
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

When I try to save a file via ange-ftp using save-buffer, I get an error 

 byte-code: Keyboard macro terminated by a command ringing the bell

I recently upgraded to 21.2 from 20.7, where I was able to work with
ange-ftp w/o incident.  I loaded emacs with 

/usr/local/bin/emacs-21.2 -q --no-site-file 

Here is the *Backtrace*:

Debugger entered--Lisp error: (error "Keyboard macro terminated by a command 
ringing the bell")
  beep()
  byte-code("Æ„lÇÈÉ  !\"ˆÊË )—‰\fUƒ̂#ÍÎ\"A‰„6Ï ˆÇÐ!ˆÑÒ!ˆ‚hÌ=ƒDÓ 
ˆÆ‚hÔ=ƒ[ÕÆÖ ?\"ˆ×ØÙ  D\"ˆ‚hÚ=ƒh×ØÛ        D\"ˆ)‚ÇÜ!ˆÆ‰)‡" [answer fn 
cursor-in-echo-area tem help-char buffer-backed-up nil message "%s changed on 
disk; really edit the buffer? (y, n, r or C-h) " file-name-nondirectory t 
read-char help assoc ((110 . yield) (7 . yield) (121 . proceed) (114 . revert) 
(63 . help)) beep "Please type y, n or r; or ? for help" sit-for 3 
ask-user-about-supersession-help revert revert-buffer buffer-modified-p signal 
file-supersession "File reverted" yield "File changed on disk" "File on disk 
now will become a backup file if you save these changes."] 5)
  ask-user-about-supersession-threat("/jdh2358@mother 
8021:/Seizure/add_to_filesystem_py")
  set-buffer-modified-p(t)
  byte-code("\nÅ\f!‡" [last-coding-system-used coding-system-used filename 
buffer-file-name mod-p set-buffer-modified-p] 2)
  ange-ftp-write-region(1 1357 "/jdh2358@mother 
8021:/Seizure/add_to_filesystem_py" nil t)
  apply(ange-ftp-write-region (1 1357 "/jdh2358@mother 
8021:/Seizure/add_to_filesystem_py" nil t))
  ange-ftp-hook-function(write-region 1 1357 "/jdh2358@mother 
8021:/Seizure/add_to_filesystem_py" nil t)
  write-region(1 1357 "/jdh2358@mother 8021:/Seizure/add_to_filesystem_py" nil 
t "/jdh2358@mother 8021:/Seizure/add_to_filesystem_py")
  basic-save-buffer-2()
  basic-save-buffer-1()
  basic-save-buffer()
  save-buffer(1)
  call-interactively(save-buffer)


I have successfully edited files via ange-ftp with 21.2 using a
different ftp server, so it is some combination of the ftp server and
the version of ange-ftp that ships with 21.2.  The server that failed
above was the zope ftp server (which I can use fine with ange-ftp in
emacs 20.7).

Recent input:
SPC d e g <backspace> b <M-tab> <M-tab> - o <M-tab> 
e <M-tab> e <backspace> r <tab> <backspace> <M-tab> 
SPC t ) <help-echo> <help-echo> C-g M-x s e t - v <tab> 
a <tab> <return> d e b u g - o n <M-tab> <tab> <tab> 
e <tab> <return> t <return> C-x C-s <up> <up> C-SPC 
<C-down> <C-down> <C-up> <up> <help-echo> <help-echo> 
M-x s u <tab> <backspace> <backspace> b u <tab> C-g 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<menu-bar> <help-menu> <report-emacs-bug>

Recent messages:

(/usr/local/bin/emacs-21.2 -q --no-site-file)
Loading disp-table...done
Loading tool-bar...done
Loading image...done
Loading tooltip...done
For information about the GNU Project and its goals, type C-h C-p.
Loading ange-ftp...done
Password for jdh2358@mother 8021: 
Password for jdh2358@mother 8021: .
Password for jdh2358@mother 8021: ..
Password for jdh2358@mother 8021: ........
Opening FTP connection to mother 8021...done
Logging in as user jdh2358@mother 8021...done
Getting PWD...done
Listing /jdh2358@mother 8021:/...done
Loading dired...done
Reading directory /jdh2358@mother 8021:/Seizure/...
Listing /jdh2358@mother 8021:/Seizure/...done
Reading directory /jdh2358@mother 8021:/Seizure/...done
Retrieving add_to_filesystem_py...done
Making completion list...
Loading view...done
Making completion list...done
Making completion list...done
list: Quit
Making completion list...
Loading etags...done
complete-tag: No tags table loaded; try M-x visit-tags-table
Making completion list...
add_to_filesystem_py changed on disk; really edit the buffer? (y, n, r or C-h) 
Entering debugger...
 [2 times]

Thanks!
John Hunter