SPS2013 refinement panel does not support multilingual user interface

Scenario:

In a SPS2013 environment you have configured terms in term store in multiple languages (French and English). These terms have been configured to be used as refiners in the search center. In the document library, the metadata (that are linked to the same terms in the term store) are displayed using the correct language depending on the browser language or the language specified in mysite.

You have included the corresponding managed metadata (i.e. owstaxId<field name>) in the refiner panel webpart in the search center. Unfortunately, the refiner items are always displayed in the default language of the term, although the browser language or the language specified in the mysite of the user is different.

The behavior is by design:

The OOB refinement panel by design does not support multilingual user interface. The name and label will be the language of the current taxonomy field and this will not get translated when you switch between languages.

Even if the source of this information is for SPS2010 the same scenario is for SPS2013.