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-rw-r--r--src/widgets/widgets/qdockarealayout.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/widgets/widgets/qdockarealayout.cpp b/src/widgets/widgets/qdockarealayout.cpp
index 2654341505..7776ae6613 100644
--- a/src/widgets/widgets/qdockarealayout.cpp
+++ b/src/widgets/widgets/qdockarealayout.cpp
@@ -182,7 +182,11 @@ QSize QDockAreaLayoutItem::sizeHint() const
QDockAreaLayoutItem
&QDockAreaLayoutItem::operator = (const QDockAreaLayoutItem &other)
{
+ if (this == &other)
+ return *this;
+
widgetItem = other.widgetItem;
+ delete subinfo;
if (other.subinfo == nullptr)
subinfo = nullptr;
else