fix(widget-select): allow number value type (#4599)

dev-test/config.yml

@@ -143,6 +143,13 @@ collections: # A list of collections the CMS should be able to edit
           options: ['a', 'b', 'c'],
           multiple: true,
         }
+      - {
+          label: 'Select numeric',
+          name: 'select_numeric',
+          widget: 'select',
+          options:
+            [{ label: 'One', value: 1 }, { label: 'Two', value: 2 }, { label: 'Three', value: 3 }],
+        }
       - { label: 'Hidden', name: 'hidden', widget: 'hidden', default: 'hidden' }
       - label: 'Object'
         name: 'object'

packages/netlify-cms-widget-select/src/schema.js

@@ -8,11 +8,12 @@ export default {
       items: {
         oneOf: [
           { type: 'string' },
+          { type: 'number' },
           {
             type: 'object',
             properties: {
               label: { type: 'string' },
-              value: { type: 'string' },
+              value: { oneOf: [{ type: 'string' }, { type: 'number' }] },
             },
             required: ['label', 'value'],
           },