From 292cff7cfcd981a50ff9a58c2e7bb5555a1b62ba Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 2 Nov 2022 00:44:48 +0100
Subject: [PATCH] Prevent undo transaction crashes in optimized builds

Worst case this will lead to undo operations not being
saved rather than segfault (debug builds will still assert).
---
 libs/ardour/session_state.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index a862957e5a..3f438bc592 100644
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -3344,6 +3344,9 @@ Session::commit_reversible_command (Command *cmd)
 {
 	assert (_current_trans);
 	assert (!_current_trans_quarks.empty ());
+	if (!_current_trans) {
+		return;
+	}
 
 	struct timeval now;