Put summary in design.md

src/commit_request.hpp

@@ -259,8 +259,7 @@ public:
 
     // Reset parser state
     if (json_parser_) {
-      WeaselJsonParser_destroy(json_parser_);
-      json_parser_ = nullptr;
+      WeaselJsonParser_reset(json_parser_);
     }
     parser_context_ = ParserContext(&arena_);
     parser_context_.state_stack.push(ParseState::Root);