Due to error in the HTML component, saving empty HTML and then refreshing the data makes a problem.

To fix that, in "src/components/fields/HTML.js" around line 22 should look like this. 


var contentBlocks=null;
    if(convertFromHTML(props.value).contentBlocks!=null){
       contentBlocks = convertFromHTML(props.value);
    }else{
       contentBlocks = convertFromHTML("Start typing your html");
    }
    const contentState = ContentState.createFromBlockArray(contentBlocks);