QmlDesigner: Remove all references also to children

If a node is deleted also children are deleted.
We have to remove all references to children, too.

Change-Id: Ie944b00ffc832fb0fb11ef0380c4b9b30add5757
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/plugins/qmldesigner/designercore/model/qmlobjectnode.cpp b/src/plugins/qmldesigner/designercore/model/qmlobjectnode.cpp
index c5ad9244a2..25f792e908 100644
--- a/src/plugins/qmldesigner/designercore/model/qmlobjectnode.cpp
+++ b/src/plugins/qmldesigner/designercore/model/qmlobjectnode.cpp
@@ -368,6 +368,14 @@ static void removeLayerEnabled(const ModelNode &node)
     }
 }
 
+static void deleteAllReferencesToNodeAndChildren(const ModelNode &node)
+{
+    BindingProperty::deleteAllReferencesTo(node);
+    const auto subNodes = node.allSubModelNodes();
+    for (const ModelNode &child : subNodes)
+        BindingProperty::deleteAllReferencesTo(child);
+}
+
 /*!
     Deletes this object's node and its dependencies from the model.
     Everything that belongs to this Object, the ModelNode, and ChangeOperations
@@ -406,7 +414,7 @@ void QmlObjectNode::destroy()
     }
 
     removeStateOperationsForChildren(modelNode());
-    BindingProperty::deleteAllReferencesTo(modelNode());
+    deleteAllReferencesToNodeAndChildren(modelNode());
 
     QmlFlowViewNode root(view()->rootModelNode());