From a6118016ecdb097a4d99a5dc1500dc7813fce729 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Thu, 17 Sep 2015 14:17:55 +0200
Subject: [PATCH] Reintroduce nullptr check in Client::removeFromMainClients

Removed by accident in 69be73d3, of course needed and causes an
unusable session due to kwin crashing when managing clients.

Sorry!
---
 group.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/group.cpp b/group.cpp
index 784d64a98e..8648d4dcc5 100644
--- a/group.cpp
+++ b/group.cpp
@@ -598,7 +598,8 @@ void Client::setTransient(xcb_window_t new_transient_for_id)
 void Client::removeFromMainClients()
 {
     TRANSIENCY_CHECK(this);
-    transientFor()->removeTransient(this);
+    if (transientFor())
+        transientFor()->removeTransient(this);
     if (groupTransient()) {
         for (ClientList::ConstIterator it = group()->members().constBegin();
                 it != group()->members().constEnd();