Taxonomy Terms translated as if they are interface strings

May be I choose the wrong title here.

I have a customised "My English" that "translates" the default Drupal English to a more user friendly English. I also use Groups and have customised the translation for Public so that it reads "Public (visible by all users)".
I use Hierarchical Select Content Taxonomy on a vocabulary that happens to have a term the term "Public" too. I am amazed to see that now in the HS CCK field I read "Public (visible by all users)" which is in a completely wrong context and therefore wrongly translated. The term "Public" does not have anything to do with groups and was never intended to be translated at all.

I.m.h.o. this is a bug. Translation of vocabularies should not take place this way. The Drupal Interface translation should not be used to translate content (taxonomy terms). I did not provide a translated Taxonomy so it should not try to be "helpful" translating what I did not intend to be translated.

I know that in my explanation you might be confused by my particular use of the Drupal interface translation system, but the same bug is valid when you would use for instance Spanish or German.