Footnote documentation error

[Nick Payne]

The documentation at 
http://lilypond.org/doc/v2.15/Documentation/notation/creating-footnotes 
for both automatic and manual footnotes says that the \footnote command 
must come *before* the grob to which the footnote is being attached. 
This doesn't seem to be the case. Here the \footnote commands are after 
the notes to which they are attached, and they work fine:

\version "2.15.37"

\paper {
    #(set-paper-size "a7")
}

\header {
        tagline = ##f
}

\relative c'' {
    c4 c-\footnote #'(0.7 . 2) #'NoteHead \markup\teeny { Automatic 
footnote }
    c c-\footnote "a)" #'(0.7 . 2) #'NoteHead \markup\teeny { \concat { 
\lower #0.8 \super { a) } "Manual footnote" } }
}

test.png
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