Describe the bug
The select widget allows true numbers (not numeric strings) to be stored by passing an array of { label: string, value: number } objects as the options parameter.
However, when an option with a value of 0 is selected in the UI, the field becomes empty, likely due to some bug related to input validation. Since the field becomes empty, if the select is required, the entry cannot be saved, otherwise the value saves as null.

To Reproduce
Create a select widget and add an option which has any label and a value of 0.
Attempt to select that option via the UI

Expected behavior
The option with a value of 0 is selected and its label is displayed

Applicable Versions:

• Netlify CMS version: 2.10.192