Like keithl, I still can't find anything documented.
Lest anyone be tempted still, as OzEx points out, be tempted to follow it even once they have identified it as a false GP, they need to consider that the aircraft's energy will be significantly higher than when on a "normal" ILS approach.
Kinetic energy is significantly higher, speed often ditto, and all that neergy has to be lost on the round-out. This will involve landing longer or faster (or both) than normal, and your landing distance performance tables are then useless. If you are heavy, chances of going off the far end (at worst) or heavy brake use (at best) will be the inevitable result.
Not to be recommended, as you could (a) bend it or (b) find yourself in the FM's office with hat and without tea and biccies.