Hello, I noticed the following bug with the recent change to the way csv files are generated in the market.

Steps to reproduce:
1. Click on a item like Titan ore, then click on "Markets in Range" hold down shift and export the demand/supply information.
2. Click on a new item while staying on the "Markets in range" tab, hold down shift and click export.

the new export will have the old file name and data

Steps to work around:
1. Click on a item like Titan ore, then click on "Markets in Range" hold down shift and export the demand/supply information.
2. Click on a new item.
3. Click on the "Supply/Demand" tab and see that the new item has been updated.
4. Now change back to "Markets in Range" tab and export as normal.

The "Supply/Demand" tab has to be "seen" so the current item id is update for the function that exports the csv file.

When you click back to the Supply/Demand screen you can see briefly that the old item was still there.