propelorm/Propel — pull request #528 by woodspire (2012-12-07 16:32:59+00:00)
Title: fix problems when relation object has a composite PK

related to https://github.com/propelorm/Propel/pull/521

I found problems when removing relations but relation PK is composite.

This fix the problems.

Test cases are included and fail without my code fix and pass when my fix is applied.