Set includes mint that isn't there [résolu]

Set includes San Francisco Mint even though no coins in the set were minted there.

https://en.numista.com/catalogue/set.php?id=4932

The contents of the set have links to coin types, not mintage lines, and the types link to the San Francisco mint.

There is no way currently to link to mintage lines, and the mintage lines don't link to mints.

(In this case the min letter or lack of mint letter in the mintage lines imply the mint, but it isn't a direct link. But there's no guaranteed way to connect a mintage line to a mint in the general case.)

That is not the case for US sets. When selecting a coin's year line for the set the mint is taken directly from that year line not from all the mints in the coin type.

I thought maybe all mints are selected if it contains non mintmarked coins but its no the case for other sets. Maybe there was an S coin selected at one point, later removed but the mints never updated.

P.S. you can at least link to specific coins as of late (but the display is moved to bottom of the web element of the year line so you have to always move one line up, if there is enough space at the bottom of the page like on long date lists)
 

2009S → https://en.numista.com/335658#collec_line737417

There probably was an S mintmark coin in the set but then it was deleted. The San Francisco mint should have been deleted. 

I tested this by creating a test set and added one coin with no mint mark. The Philadelphia mint was added:

Then I added a coin with a D mint mark. The Denver mint was added:

Then I added a coin with an S mint mark. The San Francisco mint was added:

Then I deleted the coin with the S mint mark. The San Francisco mint was removed:

That's the bug with the set I posted about.

Hello,

The coin N#6624 incorrectly had D = San Francisco. I fixed it, and now https://en.numista.com/catalogue/set.php?id=4932 correctly shows Denver and Philadelphia only.