I'm trying to filter a magento product collection by a multiselect attribute with the following...
$_productCollection = Mage::getResourceModel('catalog/product_collection')
->addAttributeToFilter('sparex_makemodel',
array('in' => $set
)
)
->addAttributeToSelect('*');
However when I echo out the query it is not being applied? anybody got a clue why? I'm sure this was working earlier... driving me mad now