diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp
index 416bd4f6b43..df944296293 100644
--- a/src/corelib/itemmodels/qabstractitemmodel.cpp
+++ b/src/corelib/itemmodels/qabstractitemmodel.cpp
@@ -3401,7 +3401,14 @@ void QAbstractItemModel::endMoveColumns()
 */
 void QAbstractItemModel::beginResetModel()
 {
+    Q_D(QAbstractItemModel);
+    if (d->resetting) {
+        qWarning() << "beginResetModel called on" << this << "without calling endResetModel first";
+        // Warn, but don't return early in case user code relies on the incorrect behavior.
+    }
+
     qCDebug(lcReset) << "beginResetModel called; about to emit modelAboutToBeReset";
+    d->resetting = true;
     emit modelAboutToBeReset(QPrivateSignal());
 }
 
@@ -3419,9 +3426,15 @@ void QAbstractItemModel::beginResetModel()
 void QAbstractItemModel::endResetModel()
 {
     Q_D(QAbstractItemModel);
+    if (!d->resetting) {
+        qWarning() << "endResetModel called on" << this << "without calling beginResetModel first";
+        // Warn, but don't return early in case user code relies on the incorrect behavior.
+    }
+
     qCDebug(lcReset) << "endResetModel called; about to emit modelReset";
     d->invalidatePersistentIndexes();
     resetInternalData();
+    d->resetting = false;
     emit modelReset(QPrivateSignal());
 }
 
diff --git a/src/corelib/itemmodels/qabstractitemmodel_p.h b/src/corelib/itemmodels/qabstractitemmodel_p.h
index e34dc3262cf..c2113fde9aa 100644
--- a/src/corelib/itemmodels/qabstractitemmodel_p.h
+++ b/src/corelib/itemmodels/qabstractitemmodel_p.h
@@ -45,6 +45,8 @@ class Q_CORE_EXPORT QAbstractItemModelPrivate : public QObjectPrivate
     QAbstractItemModelPrivate();
     ~QAbstractItemModelPrivate();
 
+    static const QAbstractItemModelPrivate *get(const QAbstractItemModel *model) { return model->d_func(); }
+
     void removePersistentIndexData(QPersistentModelIndexData *data);
     void movePersistentIndexes(const QList<QPersistentModelIndexData *> &indexes, int change, const QModelIndex &parent,
                                Qt::Orientation orientation);
@@ -115,6 +117,8 @@ class Q_CORE_EXPORT QAbstractItemModelPrivate : public QObjectPrivate
         void insertMultiAtEnd(const QModelIndex& key, QPersistentModelIndexData *data);
     } persistent;
 
+    bool resetting = false;
+
     static const QHash<int,QByteArray> &defaultRoleNames();
     static bool isVariantLessThan(const QVariant &left, const QVariant &right,
                                   Qt::CaseSensitivity cs = Qt::CaseSensitive, bool isLocaleAware = false);