URI scoping weirdness in 2.4 search

Org tree:

   CONSORTIUM
       |
   FEDERATION
       |
 +------------+
 |            |
LIB1        LIB2

(1) In 2.4, this correctly returns 2 results with URIs scoped to LIB1:

request open-ils.search open-ils.search.biblio.multiclass.query {"limit":"10","offset":"0"}, "re:imagining change how to site(LIB1) depth(2)", 1

(2) In 2.4, this returns 14 results, including records with no URIs (or other holdings) scoped to LIB1 or otherwise accessible to it:

request open-ils.search open-ils.search.biblio.multiclass.query.staff {"limit":"10","offset":"0"}, "re:imagining change how to site(LIB1) depth(2)", 1

(3) In 2.2, both of the above queries return only the 2 LIB1-scoped results.  This is the desired behavior for us.