mapper/query .options() fails when called on an inheriting mapper

[Mike Bayer]

if mapper A inherits from mapper B, and mapper B contains a property C, calling:

session.query(A).options(lazyload('C')).select()

fails to apply the option to the property 'C', since the mapperoptions logic fails to take inheriting mappers into account.

[Mike Bayer]

changeset:1915

[Mike Bayer]

Removing milestone: 0.3.0 (automated comment)