getEavAttribute('attributeName') returns no data

[alexglue]

Model.php:

            'eavAttr' => array(
                'class' => 'application.components.behaviors.EEavBehavior',
                'tableName' => 'project_eav',
                'entityField' => 'project_id',
                'safeAttributes' => [], //empty array! btw, I have three eav-fields for this model
                'preload' => false, //preload false!
                'cacheId' => 'cache'
            )

i have three attributes stored in db for Model->id instance:
attribute1=OK
attribute2=OK
attribute3=OK

Now, you should turn on CMemCache etc,
then make flush_all; //!important
and use in template smth like this:
$appealText = $this->project->getEavAttribute('attribute1'); //it's OK!
$appealText = $this->project->getEavAttribute('attribute2'); //it's NULL!
$appealText = $this->project->getEavAttribute('attribute3'); //it's NULL!

Thats all folks! you have a broken cache data!

The possible solution are following:

1. do not use 'safeAttributes' => [], with empty array
2. or do not use preload = false with empty array!
3. or use smth like this:

$eavAttributes = $this->project->getEavAttributes(['attribute1','attribute2','attribute3']);

before getting the first one!

The root of evil is:

    public function getEavAttribute($attribute) {
        $values = $this->getEavAttributes(array($attribute)); //storing to cache only the first value!
        return $this->attributes->itemAt($attribute);
    }