We have yang model:

grouping foo {
uses bar {
augment "bar/bar2" {
case a {
when "../../condition = 9";
leaf fooValue

{ type uint8; }

}
}
}
}

Grouping foo is used in 10 augmentations including (what we tested):

augment "/topo:update-lsp/topo:input/topo:arguments/topo:lspa/topo:tlvs"

{ uses foo; }

The output of java objects is following:

Lspa [_tlvs=
Tlvs [augmentation=[
Foo2 [_bar=bar [_condition=Condition [_value=9], augmentation=[]]],
Foo4 [_bar=bar [_condition=Condition [_value=9], augmentation=[]]],
Foo10 [_bar=bar [_condition=Condition [_value=9], augmentation=[]]]]],

So basically the problem is that the fooValue is not shown in (at least toString), second problem is that three instances of Foo were passed instead of one.