When setting boolean attributes on Web Components
`<x-search somebool name={this.props.name} />`
they get rendered as attribute/value pairs instead
`<x-search somebool="true" name={this.props.name}>`

This causes problems with some AMP components, for eg. `<amp-iframe />` which has a `resizable` attribute that gets rendered as `resizable="true"`. This results in non valid AMP content and developers crying with blood tears on their keyboards :)
> The attribute 'resizable' in tag 'amp-iframe' is set to the invalid value 'true'. (see https://www.ampproject.org/docs/reference/components/amp-iframe)

Is there any reason for the current behaviour? Will changing this break something else?
const container = document.createElement('div');
      
      ReactDOM.render(<img src={null} data-foo={undefined} />, container);
      const node = container.firstChild;
      expect(node.hasAttribute('src')).toBe(false);
      expect(node.hasAttribute('data-foo')).toBe(false);
      
      ReactDOM.render(<img src={undefined} data-foo={null} />, container);
      expect(node.hasAttribute('src')).toBe(false);
      expect(node.hasAttribute('data-foo')).toBe(false);
      
      ReactDOM.render(<img src={null} data-foo={undefined} />, container);
      expect(node.hasAttribute('src')).toBe(false);
      expect(node.hasAttribute('data-foo')).toBe(false);
      
      ReactDOM.render(<img />, container);
      expect(node.hasAttribute('src')).toBe(false);
      expect(node.hasAttribute('data-foo')).toBe(false);
      
      ReactDOM.render(<img src={undefined} data-foo={null} />, container);
      expect(node.hasAttribute('src')).toBe(false);
      expect(node.hasAttribute('data-foo')).toBe(false);
    });
    if (ReactFeatureFlags.enableFilterEmptyStringAttributesDOM) {
      it('should not add an empty src attribute', () => {
        const container = document.createElement('div');
        expect(() => ReactDOM.render(<img src="" />, container)).toErrorDev(
          'An empty string ("") was passed to the src attribute. ' +
            'This may cause the browser to download the whole page again over the network. ' +
            'To fix this, either do not render the element at all ' +