Option is not set from initial value on selects

[JamesLMilner]

Bug

When using Dojo 4.0.0 to create a custom <Select> widget, the option does not get set correctly from the initial value.

@agubler believes this may be because in the VDOM nodes are created from the parents downwards, which means the option do not exist when the parent select is created.

Package Version: 4.0.0

Code

const r = renderer(() => v('select', { value: 'b' }, [
    v('option'),
    v('option', { value: 'a' }, ['a']),
    v('option', { value: 'b' }, ['b'])
]));
r.mount();

Codesandbox:

Expected behavior:

The option is correctly set when the is initialized with a given value.

Actual behavior:

The option is not set.