Bug in Inspector?

[djskrien@COLBY.EDU (Dale J. Skrien)]

Sometimes when I inspect a list of CLOS objects with the inspector, the
HEX values associated with the objects seems to change arbitrarily.  Here's
a simple example:

? (defvar xx (list (make-instance 'view) (make-instance 'view)))
(#<VIEW #xB5AD69> #<VIEW #xB5ADE9>)
? (inspect 'xx)
#<INSPECTOR-WINDOW "XX" #xB5AED1>

At this point, the inspector window opens and shows that the value of xx is
a list of two views.  If I double-click on that list of two views in the
inspector window to inspect these views, I get a new inspector window
for the list.  So far, so good.
     However, now I close this new inspector window and double-click
on the list of two views again in the original inspector window to reopen
the new inspector window for the list.  I repeat this closing and opening
the inspector window for the list of two views several times.  Eventually,
the inspector window for the list of two views shows different HEX values
associated with the two views.  For example, I got
   (#<VIEW #xB5A3C1> #<VIEW #xB5A431>)

Does this mean the objects moved (due to garbage collection or some
other reason)?  I have the ephemeral garbage collector on.