Allow parent resolve before describe. (#2051)
The story of the bug "Allow parent resolve before describe. (#2051)" and how each model did on it.
Models fixed it in 5 of 6 recorded runs. The bug is in commit 6956ee7 of the repository's git history and the real fix is commit 020901f. A model gets the code at the first commit and the repository's own tests decide if it fixed the bug.