vibe.web.rest: Vibe should return 204, not 200, when Content-Length: 0

[Geod24]

/+ dub.json: {
      "name": "test-rest",
      "dependencies": {
        "vibe-d": "~>0.10"
      }
    }
 +/
module server;

import vibe.core.core;
import vibe.core.log;
import vibe.http.client;
import vibe.http.router;
import vibe.http.server;
import vibe.web.rest;

import std.stdio;

interface API {
    void postKeepalive () @safe;
}

class Server : API {
    override void postKeepalive () @safe {
        logInfo("Ping!");
    }
}

int main () {
    scope serv = new Server();
    auto router = new URLRouter();
    router.registerRestInterface(serv);
    runTask(() @safe nothrow {
        scope (failure) assert(0);
        requestHTTP("http://127.0.0.1:4242/keepalive",
            (scope req) {
                req.method = HTTPMethod.POST;
            },
            (scope res) {
                logInfo("Response status: %s", res.statusCode);
                logInfo("Response headers: %s", res.headers);
            });
    });
    listenHTTP("127.0.0.1:4242", router);
    return runEventLoop();
}

 % dub --single server.d
[...]
     Running test-rest
Listening for requests on http://127.0.0.1:4242/
Ping!
Response status: 200
Response headers: ["Server": "vibe.d/2.13.0", "Date": "Sun, 31 Aug 2025 15:44:41 GMT", "Keep-Alive": "timeout=10", "Content-Type": "application/octet-stream", "Content-Length": "0"]

I would expect Vibe.d to return a 204 when the return type of a POST method is void.