A little bit of style in Master-Details icons in list

In a list, the circles containing the values of the master-> details relations work fine and are correct, but when a relation has no value and "hide link when no child records exist" is selected then it leaves a small blank space between the rest of the circles. And I don't know how to remove it.

When this occurs many times, there are too many "gaps" or spaces

https://monosnap.com/file/n65zjBVDIi5sqTv3fRS4wIITXkifzd

See this:

https://monosnap.com/file/MoKM4OPdddeKkmPQb5oBaY4rIyIQuH
I know that it is not something important, but I think that if things have a better presence it gives more sensation. Thanks