Block collapse

[joel-bernstein]

Description

Please provide a short description of the changes you're making with this pull request.

Solution

Please provide a short description of the approach taken to implement your solution.

Tests

Please describe the tests you've developed or run to confirm this patch implements the feature or solves the problem.

Checklist

Please review the following and check all that apply:

• [ ] I have reviewed the guidelines for How to Contribute and my code conforms to the standards described there to the best of my ability.
• [ ] I have created a Jira issue and added the issue ID to my pull request title.
• [ ] I have given Solr maintainers access to contribute to my PR branch. (optional but recommended)
• [ ] I have developed this patch against the master branch.
• [ ] I have run ant precommit and the appropriate test suite.
• [ ] I have added tests for my changes.
• [ ] I have added documentation for the Ref Guide (for Solr changes only).

[madrob]

I'm not familiar with this area of the code, but this looks like a fairly stand-alone change. Can you add some doc or description of a use case when this is different from current behavior so that I can learn better?