[cmake-developers] Severe behavioural change regressions in release branch

[Ben Boeckel]

On Fri, Oct 24, 2014 at 11:36:40 -0400, Ben Boeckel wrote:
> So after discussion with Brad, this commit breaks other subtle behaviors
> as well, so the plan is to just revert it instead and defer its
> optimizations until after 3.1 once proper tests are in place (more under
> development now).

There are two branches on stage now (the previously mentioned branch has
been reverted):

  - parent-scope-tests
    Based on v3.0.0~ to test that it worked on the release. This
    includes the more complex testing of PARENT_SCOPE's behaviors.

  - revert-definition-map-lookup
    Based on the bad commit, this reverts it with a description of what
    it is happening and then merges in parent-scope-tests to ensure that
    it works there.

--Ben