From 5fb54e7cddcda2ae14f4bd988cb30c60fb432d7f Mon Sep 17 00:00:00 2001
From: Tobias Hunger <tobias.hunger@qt.io>
Date: Tue, 5 Sep 2017 13:54:20 +0200
Subject: [PATCH] TreeModel: Send modelReset() in setRootItem(...)

Change-Id: Ie24b1888521fe601455a5a15a01f02fb8b30e536
Reviewed-by: hjk <hjk@qt.io>
---
 src/libs/utils/treemodel.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/libs/utils/treemodel.cpp b/src/libs/utils/treemodel.cpp
index 78e80b273f7..b705f00711a 100644
--- a/src/libs/utils/treemodel.cpp
+++ b/src/libs/utils/treemodel.cpp
@@ -1065,9 +1065,10 @@ void BaseTreeModel::setRootItem(TreeItem *item)
     QTC_ASSERT(item, return);
     QTC_ASSERT(item->m_model == 0, return);
     QTC_ASSERT(item->m_parent == 0, return);
+    QTC_ASSERT(item != m_root, return);
     QTC_CHECK(m_root);
 
-    emit layoutAboutToBeChanged();
+    beginResetModel();
     if (m_root) {
         QTC_CHECK(m_root->m_parent == 0);
         QTC_CHECK(m_root->m_model == this);
@@ -1079,7 +1080,7 @@ void BaseTreeModel::setRootItem(TreeItem *item)
     }
     m_root = item;
     item->propagateModel(this);
-    emit layoutChanged();
+    endResetModel();
 }
 
 void BaseTreeModel::setHeader(const QStringList &displays)