Field.Group: Support "exact" prop #321
Description
What
I suggest to add a new exact prop to the <Field.Group/> component.
Why
To prevent groups closing/reopening for nested group that must belong to the group outside.
Example
<Field.Group name="first">
<Field.Group name="second">
<Input name="fieldOne" initialValue="foo" />
</Field.Group>
<Field.Group exact name="second">
<Input name="fieldOne" initialValue="bar" />
</Field.Group>
</Field.Group>Serializes into:
{
"first": {
"second": {
"fieldOne": "foo"
}
},
"second": { // exact
"fieldOne": "bar"
}
}