  glue entries  What are glue entries and how do they work in
OpenLDAP?  The manageDSAit code in back-bdb is intertwined with
is_entry_glue() calls which I don't know what to make of.  The
only glue I can see bdb create seems to be a fake entry named ""
if that is the database suffix.  And I don't see any mention of
glue entries in other backends.