fetch --no-tags with and w/o --all

Hello

$ git --version
git version 1.7.10.4

$ git fetch origin --no-tags
does what it says

$ git fetch --all --no-tags
still gets all the tags from the remote.

Is this known?

Thanks.

-- 
Cristian Tibirna				(1-418-) 656-2131 / 4340
  Laval University - Quebec, CAN ... http://www.giref.ulaval.ca/~ctibirna
  Research professional at GIREF ... ctibirna@giref.ulaval.ca