problem after changes in the general tab => "Discover all node properties for selection" is incompatible to some modules

Already the second report of this issue . See #620352: Setting page is not found.

Since I took over responsibility for ThemeKey I didn't like the way "Discover all node properties for selection" works. Especially this piece of code seems dangerous and I'm convinced that it causes the devision by zero seen in the screenshot:

  $node_types = node_get_types();
  //
  foreach ($node_types as $node_type) {
    $form_state = array();
    $form_id = $node_type->type .'_node_form';
    $node = array('uid' => 0, 'name' => '-', 'type' => $node_type->type, 'language' => 'en');
    //
    $form = drupal_retrieve_form($form_id, $form_state, $node);
    $form['#post'] = array();
    drupal_prepare_form($form_id, $form, $form_state);
    $form = form_builder($form_id, $form, $form_state);
    $node = node_form_submit_build_node($form, $form_state);
    //
    _themekey_node_discover_properties($node, $properties);
    $properties = array_diff($properties, $ignore);
  }

Maybe it's the best solution to completely remove this feature from TemeKey.
This also means to never "Add support for CCK fields (esp. numeric fields) by making the node discovery algorithm smarter" that way.

"Discover all node properties for selection" will be removed for 6.x-1.2beta5 ...