diff --git a/pwiki/parser.js b/pwiki/parser.js
index 1c8667b..bb81333 100755
--- a/pwiki/parser.js
+++ b/pwiki/parser.js
@@ -438,9 +438,15 @@ module.BaseParser = {
 	// 		the ast is constructed the other should be part of the ast...
 	// XXX ASYNC this does not yet work as a replacement for .expand(..), 
 	// 		not sure why...
-	// 		...can't yet reproduce outside the page rendering...
-	// 		...seems to be an odd sync issue, either in one of the macro
-	// 		handlers or in the way the defaults are applied...
+	//		...seems that this breaks how slots are handled...
+	//		to reproduce:
+	//			new code:
+	//				await p.pwiki.parse('<slot moo/>!!! <slot moo>moo</slot>')
+	//					-> '!!! '
+	//			old code:
+	//				await p.pwiki.parse('<slot moo/>!!! <slot moo>moo</slot>')
+	//					-> 'moo!!! '
+	//		...does not seem to affect named macros...
 	_expand: function(page, ast, state={}){
 		var that = this
 		ast = ast == null ?