From 0bb233d291ea1ade8ac2ebfea2e70b9a58d1bb44 Mon Sep 17 00:00:00 2001
From: Houtan Bastani <houtan@dynare.org>
Date: Thu, 7 Nov 2019 14:17:49 -0500
Subject: [PATCH] fix bug causing auxiliary variables for pac growth parameters
 not to contain their original symbol id

---
 src/DynamicModel.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/DynamicModel.cc b/src/DynamicModel.cc
index 2213fbdd..cf12da47 100644
--- a/src/DynamicModel.cc
+++ b/src/DynamicModel.cc
@@ -6408,6 +6408,10 @@ DynamicModel::substituteDiff(vector<expr_t> &pac_growth)
   for (const auto & equation : equations)
     equation->findDiffNodes(diff_nodes);
 
+  for (const auto & gv : pac_growth)
+    if (gv != nullptr)
+      gv->findDiffNodes(diff_nodes);
+
   /* Ensure that all diff operators appear once with their argument at current
      period (i.e. index 0 in the equivalence class, see comment above
      lag_equivalence_table_t in ExprNode.hh for details on the concepts).