WordPress default tag cloud bug?

Hello,

I use wordpress + thecartpress (as a catalog) + qtranslate (bilingual site).

The default wordpress tag cloud, both in the site and the admin, seems to display a bug when I try to provide translations for product tags (i.e. tags for thecartpress taxonomy). In one of the languages (the one I enter first in the product tag name field), translated tags are chained in the link corresponding to the first tag, then put after the non-translated tags in the tag cloud. It seems the link isn’t closed (no link end markup inserted).
Check it out here (tag cloud at bottom left of page):
http://www.cheret-aal.fr/en/product_tag/profession-de-foi/
(1 link deaconsseatsstoles rather than 3 links deacons, seats, stoles).
The french version is ok as I put its translation after the english in the product tag name field.
http://www.cheret-aal.fr/fr/product_tag/profession-de-foi/

In the admin page for Product Tags, the tag cloud was displaying the same bug (before I switched the language order to make the main site look good), but the tag names in the list are translated just fine.