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-rw-r--r--libs/ardour/session.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index fe7fad675f..dba519f660 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -480,6 +480,7 @@ Session::destroy ()
/* clear state tree so that no references to objects are held any more */
delete state_tree;
+ state_tree = 0;
/* reset dynamic state version back to default */