terraform: provider input should be scoped by path #2464
Merged
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Fixes #2024
The provider input before wasn't scoped by path, which caused
non-descendant parts of the graph to grab the configuration of another
sub-tree. The result is that you'd often get copied provider
configurations across the module barriers.
This isn't very straightforward, but it was easy to reproduce with the example config in #2024 (changed to AWS for ease of config). I couldn't get a context test for this because of the weird parallelism, but added a test on the EvalContext which is important for this behavior.