[MEI-L] @clef* inside scoredef

[TW]

I'm grave digging an old thread because I noticed that this is still
in MEI 2012:

2011/7/10 TW <zupftom at googlemail.com>:
> I'm wondering why the @clef* family of attributes is allowed on
> <scoredef>, but the <clef> element isn't.
>

(only with camelCase <scoreDef>).  Is there a specific reason?

Thomas