BUG: Tabs component does not allow switching for custom tabs

[dlebedynskyi]

Create a tabs control with simmilar

getTabLabel = (icon, text) => (
        <span className={styles.labelContainer}>
            <i className="material-icons">{icon}</i>&nbsp;&nbsp;{text}
        </span>
    );
<Tabs index={index} className={styles.tabControl} onChange={onSwitchTab}>
                        <Tab key="details" label={this.getTabLabel('folder_open', 'Details')}></Tab>
<Tab key="two" label={this.getTabLabel('folder_closed', 'other TAB')}></Tab>
</Tabs>

when switching across tabs

I looks like

renderHeaders (headers) {
      return headers.map((item, idx) => {
        return React.cloneElement(item, {
          id: idx,
          key: idx,
          active: this.props.index === idx,
          onClick: this.handleHeaderClick
        });
      });
    }

stopped working correctly.
Expected - switch tab.
React-toolbox 1.1.1 react 15.3

Related to a825208#diff-0af98bf6739641f03f896377cce4b9a8L85

UPDATE:
using event.currentTarget instead of event.target