From 37e2c79cf22b1a32c53e2bad390460b9e3d9dea3 Mon Sep 17 00:00:00 2001
From: Daniel Chappuis <chappuis.daniel@gmail.com>
Date: Mon, 9 Oct 2017 22:41:45 +0200
Subject: [PATCH] Fix issue in ContactManifoldSet

---
 src/collision/ContactManifoldSet.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/collision/ContactManifoldSet.cpp b/src/collision/ContactManifoldSet.cpp
index 2fcea3f3..4e73aa9f 100644
--- a/src/collision/ContactManifoldSet.cpp
+++ b/src/collision/ContactManifoldSet.cpp
@@ -239,6 +239,9 @@ void ContactManifoldSet::createManifold(const ContactManifoldInfo* manifoldInfo)
                                     ContactManifold(manifoldInfo, mShape1, mShape2, mMemoryAllocator);
     manifold->setPrevious(nullptr);
     manifold->setNext(mManifolds);
+	if (mManifolds != nullptr) {
+		mManifolds->setPrevious(manifold);
+	}
     mManifolds = manifold;
 
     mNbManifolds++;
@@ -248,6 +251,7 @@ void ContactManifoldSet::createManifold(const ContactManifoldInfo* manifoldInfo)
 void ContactManifoldSet::removeManifold(ContactManifold* manifold) {
 
     assert(mNbManifolds > 0);
+	assert(manifold != nullptr);
 
     ContactManifold* previous = manifold->getPrevious();
     ContactManifold* next = manifold->getNext();