Bonita 7.5.4 BD relation ship management in connector bug ?

Hi All,

I have a sample entry connector which connect to a ws, retrieve data and populate a 1-N property of a business variable (composition). The connector output is affect to the business variable
selectedCustomer <-responseDocumentBody

responseDocumentBody code extract, the business variable is selectedCustomer :

    ...
address.setTransientUnormalizedAddress(unormalizedAddress);
selectedCustomer.getAddressList().add(address);

All work fine in Bonita 7.3.1 but in version 7.5.4 the add return true(the object is add tothe list) but when i print relation size, it rerturn 0 ...

Anyone have an idea ?

Pat