bug in PostCSS with @layer

[romainmenke]

This fails :

@layer extensions {
 	@layer one, two;

 	@custom-media --mobile (min-width:320px) and (debug-layer: extensions);
 	@custom-media --tablet (min-width:768px) and (debug-layer: extensions);
 	@custom-media --desktop (min-width:1280px) and (debug-layer: extensions);

 	@layer two {
 		@custom-media --light (prefers-color-scheme: light) and (debug-layer: extensions-two);
 	}

 	@layer {
 		@custom-media --mobile (min-width:320px) and (debug-layer: extensions.anon-1);
 	}
 }

[romainmenke]

CSS above is transformed by a plugin into :

@layer extensions {
 	@layer one, two
}

This bit fails.

has been filed : postcss/postcss#1802