In JSF, some data are lost when validation fails

The bug happens when a constraint is violated on an item in a list contained in a list of complex.

[

{ name: "complex1", list: [ "item1.1", "item1.2 ] }

,

{ name: "complex2", list: [ "item2.1", "item2.2 ] }

]

Case1:
> One complex in the list
> One or multiple scalar in the sub list
==> all the invalid values are lost

Case2:
> Multiple complex in the list
> One or multiple scalar in the sub list
==> all the invalid values are lost except the values present in the sublist contained in the first complex.