bug in file-name-shadow-mode

[Luc Teirlinck]

The following would appear to be a bug `file-name-shadow-mode'.

Do emacs -Q.

M-x customize-option RET file-name-shadow-mode RET

C-x C-f

Then set file-name-shadow-mode to t for the current session using the mouse.

You are still in the minibuffer.  Clearly, file-name-shadow-mode does
not work in that minibuffer.  This might be somewhat expected.  Worse
is that file-name-shadow-mode stays disabled in subsequent invocations
of the minibuffer, even though the variable file-name-shadow-mode is t.

Sincerely,

Luc.