automatic footnotes in stand-alone text broken?

[Werner LEMBERG]

[git commit e51c3e033564d84a687eea86832563197e8a9815]

In the NR section 'Footnotes in stand-alone text with automatic marks'
the following example is given.

```
\book {
  \header { tagline = ##f }
  \markup {
    "A simple"
    \footnote "tune" \italic " By me"
    "is shown below.  It is a"
    \footnote "recent" \italic " Aug 2012"
    "composition."
  }
  \relative {
    a'4 b8 e c4 d
  }
}
```

However, this doesn't produce any footnote marks, as the attached
image shows.  Something looks fishy...


    Werner