From a06d150fbe69bc2e1fc9ffb123a2cb622a5f486c Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Mon, 19 Feb 2024 13:52:03 +0000
Subject: [PATCH] MeshZones: Corrected zone swap function

---
 src/OpenFOAM/meshes/polyMesh/zones/MeshZones/MeshZones.C | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/OpenFOAM/meshes/polyMesh/zones/MeshZones/MeshZones.C b/src/OpenFOAM/meshes/polyMesh/zones/MeshZones/MeshZones.C
index 0c94ee7341..ce201e9c1e 100644
--- a/src/OpenFOAM/meshes/polyMesh/zones/MeshZones/MeshZones.C
+++ b/src/OpenFOAM/meshes/polyMesh/zones/MeshZones/MeshZones.C
@@ -569,7 +569,10 @@ void Foam::MeshZones<ZoneType, MeshType>::swap(MeshZones& otherZones)
 
     forAll(toOtherZone, i)
     {
-        otherZones.append(zones[toOtherZone[i]].clone(otherZones));
+        otherZones.PtrList<ZoneType>::append
+        (
+            zones[toOtherZone[i]].clone(otherZones)
+        );
         zones.set(toOtherZone[i], nullptr);
     }