I observed the following problem on Magento 126.96.36.199 fully patched:
Patch SUPEE-11314 breaks correct wishlist adding behaviour on product detail view of configurable products.
By clicking "Add to Wishlist" you save the configurable product with selected option correctly to your wishlist. In the wishlist you can edit the wishlist item and change the selected option later.
After applying SUPEE-11314:
The selected configurable option is not correctly saved to wishlist. Instead the configurable product gets saved to wishlist without the selected option. Editing the wishlist item doesn't work anymore.
The patches' changes to
app/design/frontend/base/default/template/catalog/product/view/addto.phtml seem to be the reason for this problem:
Before the patch client side JS was used to submit the selected product:
onclick="productAddToCartForm.submitLight(this, this.href); return false;"
After the patch an url is used which is generated by PHP - so the selection is not checked:
onclick="customFormSubmit('<?php echo $this->helper('wishlist')->getAddUrlWithCustomParams($_product, array(), false) ?>', '<?php echo $this->escapeHtml(json_encode(array('form_key' => $this->getFormKey()))) ?>', 'post')"