Serialize a subclass

[dTrimon]

Hello,
Not sure I'm doing the right thing, but you could drive me on the good path!
I'm trying tu use bundle inheritance for the first time.
I came to inherit my entities without abstract class
I created an discriminatorColumn in doctrine configuration.
So far it is working as expected.
What puzzles me with abstract calss was the fact that many2many link are not possible.

But when comming to serialization, only my parent class is serialized, Chid class is forgotten!
I tried to add the discriminator in my serialization yml file, using the same mapping as in doctrine: no success.
I'm using 1.1.0 version.
Any help appreciated.
Thanks

[dTrimon]

My fault! My database was corrupted! forget it