Problem with orphanRemoval

Hi,

I created 2 tests to show that we encounter a problem when using orphanRemoval (see https://github.com/raziel057/doctrine2/commit/2e0323534b72f2923e72596414c6dea548be3b1f).

-> The ActionLog is created with no value in the "action" column.

That's not the case when removing manually (see https://github.com/raziel057/doctrine2/commit/7288077cdcb59944063a973ab9a830e04ecb7e3e).

-> The ActionLog is created with value "remove" in the "action" column.

I think the behavior must be the same in the 2 Tests.