propelorm/Propel — pull request #642 by rwdaryl (2013-03-31 11:09:11+00:00)
Title: Added test: Update both directions in many-to-many relationship

As described in https://groups.google.com/forum/#!topic/propel-users/Ubc5A9awV3Q currently only one object of a many-to-many relation gets updated when adding (before saving).

Possible solution is mentioned by Marius Ghita in the link above.