Check props.data in the componentDidUpdate() lifecycle

[ma2ciek]

Follow-up of the #37 and #37 (comment)

ckeditor5-react/src/ckeditor.jsx

Lines 18 to 22 in 383b25d

	componentDidUpdate() {
	if ( this.editor && this.editor.getData() !== this.props.data ) {
	this.editor.setData( this.props.data );
	}
	}

As @pomek proposed, we should check if the this.props.data is equal to undefined to prevent an infinite update loop.

[ma2ciek]

Not sure if this should be marked as a bug or as an enhancement 😄

[pomek]

Mhm, I proposed aborting the update editor's data if this.props.data does not exist:

// Aborts updating the editor's data if "data" property wasn't specified.
if ( !( 'data' in this.props ) ) { 
  return; 
}

[pomek]

And of course, it's a bug that occurs in very specified environments.