ipyvuetify.Select component returns empty {} data when selecting item with value: 0

When using the Select component from ipyvuetify, selecting an item with value: 0 in the list of items results in an empty {}object being sent as data in the on_select callback. This behavior is unexpected, as I would expect the data parameter to contain the selected item information, similar to selections with non-zero values.

Steps to Reproduce:

Define a list of items with at least one item having value: 0, such as:

items = [{'text': 'Value 0', 'value': 0}, {'text': 'Value 1', 'value': 1}, {'text': 'Value 2', 'value': 2}]

Create a Select component with this items list:

import ipyvuetify as v

def on_select(widget, event, data):
    print("data at on_select", data)

select = v.Select(v_model=[], items=items)
select.on_event('change', on_select)

Select the item with value: 0 and observe the output from on_select

data at on_select {}
data at on_select 1
data at on_select 2

Start by running the provided Select and on_event reproduction with an item whose value is 0, then trace the Select change-event handling that assembles the callback data. Done means selecting value 0 supplies the selected item information rather than an empty object, while existing non-zero selections continue to work.