From d75eb944049a3fc3be191ca1e8518f8c1bbcfaa2 Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Fri, 28 Apr 2017 12:08:21 +0100
Subject: [PATCH] particle: Avoid warning about uninitialized edge

---
 src/lagrangian/basic/particle/particle.C | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lagrangian/basic/particle/particle.C b/src/lagrangian/basic/particle/particle.C
index ea1a1a07a3..6c62c85fbd 100644
--- a/src/lagrangian/basic/particle/particle.C
+++ b/src/lagrangian/basic/particle/particle.C
@@ -388,6 +388,8 @@ void Foam::particle::changeFace(const label tetTriI)
             << "Changing face without changing cell should only happen when the"
             << " track is on triangle 1, 2 or 3."
             << exit(FatalError);
+
+        sharedEdge = edge(-1, -1);
     }
 
     // Find the face in the same cell that shares the edge, and the