edx/edx-ora2 — pull request #458 by wedaly (2014-06-23 19:53:14+00:00)
Title: Bugfix: validate duplicate point values for rubrics with example-based assessments

[TIM-660](https://edx-wiki.atlassian.net/browse/TIM-660): AI: Duplicate point values are being allowed by Studio for example-based grading, but they shouldn't be.

The indentation level was wrong; fixed and updated the test to catch the error.

@stephensanchez