checkForClone = tObj => {

  const tRefs = utils.getDublicates(tObj);

  if (!tRefs.length) {
    return;
  }

  // remove any defined edges
  utils.setField(tObj, 'tmap.edges', undefined);

  // force override id
  $tm.tracker.assignId(tObj, true);

  // inform the user about what we did
  $tm.dialogManager.open('dublicateIdInfo', {
    param: {
      changedTiddler: tObj.fields.title,
      filter : utils.joinAndWrap(tRefs, '[[', ']]'),
      id: utils.getId(tObj),
    }
  });


}
We need to do this check as TiddlyWiki does not allow us to hook into the
clone process to find out whether a node was cloned.

@param tObj