diff -r 99e342f9fb0c -r d19ba6045e82 client/src/components/SlateEditor/index.js
--- a/client/src/components/SlateEditor/index.js	Wed Dec 05 19:00:08 2018 +0100
+++ b/client/src/components/SlateEditor/index.js	Wed Dec 05 23:52:25 2018 +0100
@@ -4,7 +4,6 @@
 import React from 'react';
 import { withNamespaces } from 'react-i18next';
 import { connect } from 'react-redux';
-import * as R from 'ramda';
 import HtmlSerializer from './HtmlSerializer';
 import { now } from '../../utils';
 import Toolbar from './Toolbar';
@@ -55,8 +54,6 @@
 
   onChange = ({value, operations}) => {
 
-    const oldState = R.clone(this.state);
-
     const newState = {
       value
     };
@@ -75,7 +72,7 @@
 
     this.setState(newState, () => {
       if (typeof this.props.onChange === 'function') {
-        this.props.onChange(R.clone(this.state), oldState, {value, operations});
+        this.props.onChange(this.state, {value, operations});
       }
     })
   }