QSortFilterProxyModel: scope a variable tighter

The clear() will not preserve capacity, since the QList has been
copied into proxy_intervals already, so is shared. But then creating a
new QList is just as efficient, or more so.

Pick-to: 6.7
Change-Id: I7ffd91bae8ded5ac28d58bcc545c479f6edc7c90
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.cpp b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
index ddb9022d9e..c02fb7619b 100644
--- a/src/corelib/itemmodels/qsortfilterproxymodel.cpp
+++ b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
@@ -832,10 +832,9 @@ QList<QPair<int, QList<int>>> QSortFilterProxyModelPrivate::proxy_intervals_for_
     int proxy_low = 0;
     int proxy_item = 0;
     int source_items_index = 0;
-    QList<int> source_items_in_interval;
     bool compare = (orient == Qt::Vertical && source_sort_column >= 0 && dynamic_sortfilter);
     while (source_items_index < source_items.size()) {
-        source_items_in_interval.clear();
+        QList<int> source_items_in_interval;
         int first_new_source_item = source_items.at(source_items_index);
         source_items_in_interval.append(first_new_source_item);
         ++source_items_index;