I forgot to comment when i read it but remembered today.
when you tag multiple checker with the same code some tag will be used for the automatic background and it might not always be the same.
The problem is that the result of the one used will be displayed on maps and you might get now passed when you have passed with another tag.
I have on ok and 2 not ok
Remove the gc code and add them in the description with a explanation.
multiple checkers can be linked from a cache and without the gccode in the tag so map icons will not be incorrect