From f6e814fa85c0c00888244a3ae01319f625bcd2a1 Mon Sep 17 00:00:00 2001
From: Ben Niemann <pink@odahoda.de>
Date: Thu, 12 Mar 2020 17:46:18 +0100
Subject: [PATCH] Apparently fixes some use-after-free bug, though I don't
 understand why...

---
 noisicaa/audioproc/engine/graph.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/noisicaa/audioproc/engine/graph.py b/noisicaa/audioproc/engine/graph.py
index 74f7378f..50ec179c 100644
--- a/noisicaa/audioproc/engine/graph.py
+++ b/noisicaa/audioproc/engine/graph.py
@@ -272,6 +272,7 @@ class Node(object):
         The counterpart of setup().
         """
         logger.info("%s: cleanup()", self.name)
+        self.__control_values.clear()
 
     def set_session_value(self, key: str, value: session_data_pb2.SessionValue) -> None:
         pass