
Also the same for the A-H planning.
Three steps:
1. I set the intended production.
2. I check my overall finances - note that the expenditure for mun building is listed as 9.
3. And indeed, when I go back and check the mun production it is back at 9. (though the button is still in the same position as where I moved it)
After a restart of the game it is also set to 9 and the button all to the right.
Edit: Just noticed it is also reset when I check the technology research...