Fixed bug were POST didn't re-send form correctly

asgi_csrf.py

@@ -101,8 +101,7 @@ async def _parse_form_urlencoded(receive):
         more_body = message.get("more_body", False)
 
     async def replay_receive():
-        for message in messages:
-            yield message
+        return messages.pop()
 
     return dict(parse_qsl(body.decode("utf-8"))), replay_receive
 

setup.py

@@ -22,5 +22,5 @@ def get_long_description():
     license="Apache License, Version 2.0",
     version=VERSION,
     py_modules=["asgi_csrf"],
-    extras_require={"test": ["pytest", "pytest-asyncio", "httpx",]},
+    extras_require={"test": ["pytest", "pytest-asyncio", "httpx", "starlette"]},
 )

test_asgi_csrf.py

@@ -1,10 +1,22 @@
+from starlette.applications import Starlette
+from starlette.responses import JSONResponse
+from starlette.routing import Route
 from asgi_csrf import asgi_csrf
 import httpx
 import pytest
 
 CSRF_TOKEN = "9izX9q37XP9knNNQ"
 
 
+async def hello_world(request):
+    if request.method == "POST":
+        return JSONResponse(dict(await request.form()))
+    return JSONResponse({"hello": "world"})
+
+
+hello_world_app = Starlette(routes=[Route("/", hello_world),])
+
+
 async def hello_world_app(scope, receive, send):
     assert scope["type"] == "http"
     await send(