don't write keys in canonical_name_form

src/util/io/writer.cpp

@@ -52,7 +52,7 @@ void Writer::writePending() {
 		}
 		indentation += 1;
 		writeIndentation();
-		writeUTF8(stream, canonical_name_form(pending_opened[i]));
+		writeUTF8(stream, pending_opened[i]);
 	}
 	pending_opened.clear();
 }