unload-feature ==> inconsistent state for emacs

[D . Goel]

[1] 
emacs -q -no-site-file 
Load a file ~/vv.el containing:
====================================================
(easy-mmode-define-minor-mode
 vv-mode "The mode to inherit minibuffer keybindings"
 nil "dfdf")

(provide 'vv)
====================================================
M-x unload-feature vv

now, the variable vv-mode is either defined or undefined, depending on
whether unload-feature recognized it.  I guess Both would be fine, as
unload-feature "does its best" and is not a "guarantee".

But the problem is that things are worse.  Emacs seems to have entered
a strange state wrt the variable vv-mode.   To see this M-x load-file
~/vv.el, now vv-mode should be defined. So,  M-: vv-mode to get this
backtrace
,----
| Debugger entered--Lisp error: (void-variable vv-mode)
|   eval(vv-mode)
|   eval-expression(vv-mode nil)
|   call-interactively(eval-expression)
`----
====================================================

[2]
I then appended a (defvar vv-mode nil) to the beginning of vv.el and
went through the entire procedure above, and got the same error. 

====================================================







In GNU Emacs 21.2.1 (i386-debian-linux-gnu, X toolkit, Xaw3d scroll
 bars) of 2002-03-22 on raven, modified by Debian configured using
 `configure i386-debian-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes --with-x=yes
 --with-x-toolkit=athena --without-gif' Important settings: value of
 $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: nil value
 of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC:
 nil value of $LC_TIME: nil value of $LANG: C locale-coding-system:
 nil default-enable-multibyte-characters: t

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




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