Citizen Allocation Focus bugged - in later games/golden ages?

[Anastomosis]

I haven't totally isolated when this happens, though I imagine the possibilities are endless. I have noticed that at least the Food and Production Focus does not pick the combination with the highest food or production, respectively. Check out the two screenshots (sorry low res). Clicking Food focus gives +0 food and +107.8 production, whereas picking Production Focus gives +0.5 food and +44 production??

You'll notice that it assigns a specialist to my factory when I pick Production Focus, and removes it on Food Focus. At least that makes a little sense, but the total production is so much lower on Production Focus. Granted I am going to get a great engineer a little sooner with this configuration, but if I wanted that I would pick Great People Focus, or just manually select the specialist.

One hypothesis is that it may have something to do with my increased production per tile as I am in a golden age - that somehow it is not accounting for it. I will experiment more - just wondering if anyone else has noticed this.

 

[Anastomosis]

Here's a savegame to play around with if you want. Osaka is the city in question, as per the screenshots.

JapanCitizenAllocation.Civ5Save