From 1f32d01a4953eeb567ddaac076b3de2b541acd2a Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Wed, 22 Nov 2023 13:05:54 +0200
Subject: [PATCH] Guard against null Group in EffectWindow::group()

Closed windows don't belong to any group.

BUG: 476827
---
 src/effect/effectwindow.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/effect/effectwindow.cpp b/src/effect/effectwindow.cpp
index 5e31cb9950..3f2c5e9b89 100644
--- a/src/effect/effectwindow.cpp
+++ b/src/effect/effectwindow.cpp
@@ -213,10 +213,10 @@ void EffectWindow::addLayerRepaint(const QRect &r)
 
 const EffectWindowGroup *EffectWindow::group() const
 {
-    if (auto c = qobject_cast<X11Window *>(d->m_window)) {
-        return c->group()->effectGroup();
+    if (Group *group = d->m_window->group()) {
+        return group->effectGroup();
     }
-    return nullptr; // TODO
+    return nullptr;
 }
 
 void EffectWindow::refWindow()