I have a few questions about the new bibliography system. The following 
example code illustrates the problems.

    \startbuffer[TestBib]
    @OTHER{Author1975a,
       author = {An Author},
       title = {A title},
       year = {1975},
    }
    @OTHER{Author1975b,
       author = {Author, An},
       title = {Another title},
       year = {1975},
    }
    @OTHER{Else1975a,
       author = {Somebody Else},
       title = {A third title},
       year = {1975},
    }
    @OTHER{Else1975b,
       author = {Somebody Else},
       title = {A last title},
       year = {1975},
    }

    @FILM{Movie,
       producer     = {Normal Name},
       director     = {Funny Name},
       title        = {Who Knew?},
       year         = {2010},
       publisher    = {Producer},
       address      = {Hollywood}
    }

    @INBOOK{Subtitle,
       author       = {Sally Subtitle-Spacing},
       title        = {Another Country},
       year         = {1958},
       publisher    = {Publisher},
       address      = {City},
       volume       = {16},
       booktitle    = {On the road},
       booksubtitle = {Books and essays written while traveling under
    cover},
    }

    \stopbuffer
      \loadbtxdefinitionfile[apa]
      \usebtxdefinitions    [apa]
      \usebtxdataset        [TestBib.buffer]
      \definebtxrendering   [Pubs][apa]

    \starttext

    \nocite[*]

    \placelistofpublications[Pubs]

    \stoptext

How can I get “An Author” treated like “Author, An” as in the OTHER 
examples? The result should like like that of “Somebody Else”. Bibtex 
databases have both forms and it would be nice if the work was done by 
ConTeXt automatically.

The manual suggests that fields like director (see the FILM example) can 
be induced to be treated as author/editor names by sufficiently advanced 
users. Would such a user please share the method?

In the INBOOK example, can we get a BOOKSUBTITLE field to complement the 
BOOKTITLE? My real bibliography has some very long titles, and I would 
rather have only the main part appear with \cite[booktitle][entry], yet 
have the title with subtitle in the bibliography.

Also in the INBOOK example, I notice that the spacing after “Vol.” is a 
sentence space, and it should not be. The spacing after abbreviations in 
the bibliography should not depend on setting frenchspacing.

-- 
Rik