space-before-selector-delimiter doesn't seem to work in .scss #68

I use SCSS in my project, and with the following in my .csscomb.json
space-after-selector-delimiter: "\n";
After running csscomb all the selectors previously separated by , are now on the same line. Do you have an insight? Thank you very much.
Before

input[type='text'], 
input[type='button'], 
input[type='checkbox'], 
input[type='radio'], 
select { 

---
}

After

input[type='text'], input[type='button'], input[type='checkbox'], input[type='radio'], select { 

---
}

Before running com, the rules seem more readable, imo. especially true when there are many rules grouped together.