ticket 427 is fixed in rev 2216.  so using the trunk or 0.3.4 when i
get around to releasing, this is the program:

imageMapper = mapper(Image, ImageTable,
               properties={'comments': relation(Comment,
secondary=ImageCommentTable, lazy=False, cascade="all, delete-orphan")}
               )

session = create_session()
i = Image("new")
session.save(i)
session.flush()
c = Comment("new comment")
session.save(c)
i.comments.append(c)
session.flush()

i = session.query(Image).get(i.id)
c = session.query(Comment).get(c.id)
i.comments.remove(c)
session.flush()
session.clear()


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