fix: empty string can be default value

packages/core/src/field.ts

@@ -100,7 +100,8 @@ export class Field implements IField {
 
   public initialize(options: IFieldOptions) {
     const rules = this.getRulesFromProps(options.props)
-    this.value = !isEmpty(options.value) ? clone(options.value) : this.value
+    this.value = clone(options.value)
+
     this.name = !isEmpty(options.name) ? options.name : this.name || ''
     this.namePath = resolveFieldPath(this.name)
 

packages/react/src/__tests__/value.spec.js

@@ -0,0 +1,34 @@
+import React from 'react'
+import { render } from '@testing-library/react'
+import SchemaForm, { Field, registerFormField, connect } from '../index'
+
+beforeEach(() => {
+  registerFormField(
+    'string',
+    connect()(props => <div data-testid="value">{typeof props.value}</div>)
+  )
+})
+
+test('default value', async () => {
+  const Component = () => (
+    <SchemaForm defaultValue={{ foo: '' }}>
+      <Field name="foo" type="string" />
+    </SchemaForm>
+  )
+
+  const { getByTestId } = render(<Component />)
+  await sleep(33)
+  expect(getByTestId('value').textContent).toEqual('string')
+})
+
+test('initialValues', async () => {
+  const Component = () => (
+    <SchemaForm initialValues={{ foo: '' }}>
+      <Field name="foo" type="string" />
+    </SchemaForm>
+  )
+
+  const { getByTestId } = render(<Component />)
+  await sleep(33)
+  expect(getByTestId('value').textContent).toEqual('string')
+})