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From: Richard Stallman <rms@gnu.org>
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Subject: Re: (font-lock-mode 1) does not always force font-lock
Date: Thu, 23 Oct 2003 14:38:38 -0400
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    This returns nil because `(font-lock-mode 1)' does not force
    font-lock, contrary to the docstring which, in GNU Emacs 21.2.1,
    states:

	With arg, turn Font Lock mode off if and only if arg is a
	non-positive number; if arg is nil, toggle Font Lock mode;
	anything else turns Font Lock on.

    I assume the problem is that the buffer is that the buffer in question
    is temporary.

that seems like a bug to me.  perhaps it is a consequence of a feature
meant for some other case.  what code tests this?

can u suggest a patch?