CMIS SYNC content is not loaded due to undefined variable 'widget_type'

When trying to synchronize CMIS content, the following warnings occur:

Notice: Undefined index: widget_type in _cmis_sync_drupal_node_field_value() (line 214 of drupal-7.10\sites\all\modules\cmis\cmis_sync\cmis_sync.drupal.inc).
Notice: Undefined variable: content_type in _cmis_sync_drupal_node_field_value() (line 285 of drupal-7.10\sites\all\modules\cmis\cmis_sync\cmis_sync.drupal.inc).

This is because $fields is an array of array('widget' => array('type' => ...)), not array('widget_type' => ...). Perhaps this is a change from Drupal 7.x?

The workaround is to change the following line:

// cmis_sync/cmis_sync.drupal.inc line 210
switch($fields[$field_name]['widget_type']) {

To:

// cmis_sync/cmis_sync.drupal.inc line 210
switch($fields[$field_name]['widget']['type']) {