[v2] Dispatcher/ServerRunner receive-path swap — replaces BaseSession (#2710)

src/mcp/client/sse.py

@@ -10,6 +10,7 @@ from anyio.abc import TaskStatus
 from httpx_sse import SSEError, aconnect_sse
 
 from mcp import types
+from mcp.shared._compat import resync_tracer
 from mcp.shared._context_streams import create_context_streams
 from mcp.shared._httpx_utils import McpHttpClientFactory, create_mcp_http_client
 from mcp.shared.message import SessionMessage
@@ -157,3 +158,4 @@ async def sse_client(
 
                 yield read_stream, write_stream
                 tg.cancel_scope.cancel()
+            await resync_tracer()