Comment 21 for bug 1731349

Reviewed: https://review.openstack.org/532301
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=77112137bb368304be2437de09f0224e8e38ab58
Submitter: Zuul
Branch: master

commit 77112137bb368304be2437de09f0224e8e38ab58
Author: Zane Bitter <email address hidden>
Date: Tue Jan 9 11:29:25 2018 -0500

    Fix resource.<n> attribute caching in ResourceGroup/Chain

    When generating the nested template output, we need to take into account
    both forms of syntax:

       get_attr: [<group_name>, resource.<index>.<attr_name>, ...]

    or

       get_attr: [<group_name>, resource.<index>, <attr_name>, ...]

    Previously we would generate an output for the former case but not the
    latter, so the attribute wouldn't get cached when that syntax was used.

    Change-Id: I2a059d5cc42d794ca71caaa1661c32eb76c733fc
    Closes-Bug: #1742185
    Partial-Bug: #1731349
    Related-Bug: #1660831