I've just placed a Boron Ion Mine, and it builds Tracker Mines

In the Encyclopedia/Wares/Factories it has both Ion Mines & Tracker Mines... The Boron Have the Ion Mine Fab and Split have the Tracker Mine Fab.
Are they both Tracker Mines? Are they Swapped: ie Tracker Mine Fabs produce Ion Mines??
or is it just a bug
Edit: oh and it's a Vanilla 1.4 game
Edit2: after having a brain fluff and loading a game when I mean to save... thus loosing the fab. I bought a Split Tracker Mine Fab and it produces Ion Mines... So obviously theres a bug there

Can Egosoft fix it before 2.0
