[csswg-drafts] [css-shapes] Serialization of `circle(at center)` contradicts itself

Manishearth has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [css-shapes] Serialization of `circle(at center)` contradicts 
itself ==
https://drafts.csswg.org/css-shapes/#basic-shape-serialization

The spec mentions that while serialization, we should:

> \[omit] components when possible without changing the meaning

However, in the examples below, it also mentions that 
`circle(closest-side at center)` should serialize to `circle(at 50% 
50%)`. Earlier it's mentioned that `at center` is the default, so 
really this should be `circle()`.



Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/365 using your GitHub 
account