2 files changed, 11 insertions, 4 deletions
diff --git a/src/gui/widgets/qcombobox.cpp b/src/gui/widgets/qcombobox.cpp
index 6cf24a6..213ca95 100644
--- a/src/gui/widgets/qcombobox.cpp
+++ b/src/gui/widgets/qcombobox.cpp
@@ -2003,11 +2003,18 @@ void QComboBox::setCurrentIndex(int index)
 void QComboBoxPrivate::setCurrentIndex(const QModelIndex &mi)
 {
     Q_Q(QComboBox);
-    bool indexChanged = (mi != currentIndex);
+
+    QModelIndex normalized;
+    if (mi.column() != modelColumn)
+        normalized = model->index(mi.row(), modelColumn, mi.parent());
+    if (!normalized.isValid())
+        normalized = mi;    // Fallback to passed index.
+
+    bool indexChanged = (normalized != currentIndex);
     if (indexChanged)
-        currentIndex = QPersistentModelIndex(mi);
+        currentIndex = QPersistentModelIndex(normalized);
     if (lineEdit) {
-        QString newText = q->itemText(currentIndex.row());
+        QString newText = q->itemText(normalized.row());
         if (lineEdit->text() != newText)
             lineEdit->setText(newText);
         updateLineEditGeometry();
diff --git a/src/gui/widgets/qcombobox_p.h b/src/gui/widgets/qcombobox_p.h
index 29a628c..c0727ed 100644
--- a/src/gui/widgets/qcombobox_p.h
+++ b/src/gui/widgets/qcombobox_p.h
@@ -337,7 +337,7 @@ private:
     QComboBox *mCombo;
 };
 
-class QComboBoxPrivate : public QWidgetPrivate
+class Q_AUTOTEST_EXPORT QComboBoxPrivate : public QWidgetPrivate
 {
     Q_DECLARE_PUBLIC(QComboBox)
 public: