Nested `@supports` conditions do not render correctly. Input ``` scss @supports ((foo: bar) or (foo: bar) or (foo: bar)) and (foo: bar) { div { bar: baz; } } ``` Expected output ``` css @supports (foo: bar) or (foo: bar) or (foo: bar) and (foo: bar) { div { bar: baz; } } ``` Actual output ``` css @supports (: or ) and (foo: bar) { div { bar: baz; } } ``` Specs added https://github.com/sass/sass-spec/pull/122.