title: DatePicker doesn't work when stopEditingWhenGridLosesFocus option is true
body: <p>In <a href="https://next.plnkr.co/edit/OqccEMROZgjz0uV4Khch?preview" rel="nofollow noreferrer">this example</a> clicking on a date it is possible to edit it, but if you use the option "stopEditingWhenGridLosesFocus", the date picker doesn't work anymore. Is it possible to fix this? </p>
  
  <pre><code>&lt;AgGridReact
     stopEditingWhenGridLosesFocus // without this line works fine
     columnDefs={this.state.columnDefs}
     components={this.state.components}
     onGridReady={this.onGridReady.bind(this)}
     rowData={this.state.rowData}
   /&gt;
  </code></pre>