Cake 1.2.5875 pre-beta some bug with saveField

I have some trouble with Model->saveField('title',$title);

when I switch project to Cake 1.2.5875 pre-beta, suddenly cake set to 0,null,'' all other fields in my table ;-(

But daphonz say, how to fight with this bug:

$saveData = array('Category'=>array('id'=>$category['ParentCategory']['id'],'options'=>serialize($options)));

$this->Image->Category->save($saveData,false,array('Category.options'));


Not so beauty, but it's work fine.

Good luck, pals!