I'm unsure whether you are referring to a stock game command or something you've modded with the 'A' extension. I'll assume it's the stock command because that is what we are creating the patch for.
With 1.4, the facing orders were not carried out by courier. The units just rotated, and the formation was not centred or orientated on the general.
With 1.5, the facing orders were included in the courier order, but the facing was still off - they were unit centred rather than formatio centred.
With 1.6, this has been corrected. Now instead of getting a formation like you do on the LHS side of this image, you get the correct formation on the RHS - for moving units or stationary ones.
The attachment formation.png is no longer available
Are we talking about the same thing?