Updated openstack/openstack
Project: openstack/heat  8e7294a7c3178222f94ce1cea45d77d70d5ac95e

Don't rely on setdefault returning a value

Workaround a bug in sqlalchemy>=0.9.5 where setdefault doesn't return
the proper value.

Change-Id: Ibc93024f7f41f4ced81525fac42566a18b1c641c
Closes-Bug: #1333556