Bug: Month record of "transported goods" is incorrect

[RESTRICTED ACCOUNT]

I think the "Goods needed" chart in the City list dialog is broken.
(I posted here but, the identity of "Good needed" seems to be transported goods in this chart.)

I noticed that there is no correlation between "Years" and "Months" in this chart.


The above image is in demo.sve. Probably since it used to function properly in the past, records of "months" remain.

However, when I fast forwarded with the current version extended, it continue to show 0.


Contrary to this, the value of "Years" will increase.

[jamespetts]

Thank you for the report. I think that I am going to have to wait until I get back home and can easily use a graphical debugger before looking into this one.

[RESTRICTED ACCOUNT]

I think I fixed this bug.
I threw a pull request, so please check it.
(Again note that this data is "Goods transported", not "Goods needed")

[jamespetts]

Thank you very much for this: now incorporated.

My apologies for not having had a great deal of time to spend on Simutrans of late.

[RESTRICTED ACCOUNT]

Sorry for the late report but I confirmed that this bug has been fixed in #e24449c.