ORM neglects to use aliases it has set up when certain multiple subqueries are used

[ris]

Using django git 9d7a4ea20510a2e35fdeac21d67f3f4c17634c25

Example models.py:

from django.db import models

class ModelA ( models.Model ):
	pass

class ModelB ( models.Model ):
	modela_fk = models.ForeignKey ( ModelA )
	modelc_fk = models.ForeignKey ( "ModelC" )
	
	field_b0 = models.IntegerField ( null = True )
	field_b1 = models.BooleanField ()

class ModelC ( models.Model ):
	field_c0 = models.FloatField ()

Given the following query (yes, totally redundant subclauses noted):

ModelA.objects.filter (
    Q ( pk__in = ModelA.objects.filter ( Q ( modelb__field_b0__gte = 1000000 / F ( "modelb__modelc_fk__field_c0" ) )
        & Q ( modelb__field_b1__exact = True )
        & ~Q ( modelb__pk__in = ModelB.objects.filter (
            ~(
                Q ( field_b1__exact = True )
                & Q ( field_b0__gte = 1000000 / F ( "modelc_fk__field_c0" ) )
             )
        ) )
    ).filter ( modelb__field_b1__exact = True )
) )

Used against postgres 9.1 generates the error:

ProgrammingError: invalid reference to FROM-clause entry for table "dummy_modelb"
LINE 1: ...") AND U0."field_b0" IS NOT NULL)) AND V1."id" = ("dummy_mod...
                                                             ^
HINT:  Perhaps you meant to reference the table alias "v1".

[Tim Graham]

Did it work in older versions of Django? If so, could you bisect to the commit in Django where things broke?