symfony/symfony — pull request #2731 by ericclemmons (2011-11-27 01:45:35+00:00)
Title: Fixed #2545 - ChoiceType flattens grouped Choices when expanded

Bug fix: yes
Feature addition: no
Backwards compatibility break: no
Symfony2 tests pass: yes
Fixes the following tickets: #2545

**Problem**: With PR #2464, a bug was discovered when nested choices threw a exception during rendering.

**Solution**: Nested choices are flattened prior to creating checkbox/radio fields.