xload_all(Parent.c1, Parent.c2) should raise an error

from sqlalchemy import *
from sqlalchemy.orm import *
from sqlalchemy.ext.declarative import declarative_base

Base= declarative_base()

class A(Base):
    __tablename__ = "a"

    id = Column(Integer, primary_key=True)
    bs = relationship("B")
    cs = relationship("C")

class B(Base):
    __tablename__ = "b"

    id = Column(Integer, primary_key=True)
    aid = Column(Integer, ForeignKey('a.id'))

class C(Base):
    __tablename__ = "c"

    id = Column(Integer, primary_key=True)
    aid = Column(Integer, ForeignKey('a.id'))

s = Session()

q = s.query(A).options(joinedload_all(A.bs, A.cs))
print q

if in 0.7, emit a warning for now.

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