Fix accessing temporary copies via QStringRef

Amends change 840e787175f0cec4714c3941c99c045a9717910d

Change-Id: I633500b0fdbeeeb8b3d8accd3aec1e2990c62bca
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/plugins/coreplugin/documentmanager.cpp b/src/plugins/coreplugin/documentmanager.cpp
index 9cf6a25a71..d0729405ef 100644
--- a/src/plugins/coreplugin/documentmanager.cpp
+++ b/src/plugins/coreplugin/documentmanager.cpp
@@ -703,7 +703,9 @@ QString DocumentManager::getSaveFileName(const QString &title, const QString &pa
                 const int index = regExp.lastIndexIn(*selectedFilter);
                 if (index != -1) {
                     bool suffixOk = false;
-                    const QVector<QStringRef> suffixes = regExp.cap(1).remove(QLatin1Char('*')).splitRef(QLatin1Char(' '));
+                    QString caption = regExp.cap(1);
+                    caption.remove(QLatin1Char('*'));
+                    const QVector<QStringRef> suffixes = caption.splitRef(QLatin1Char(' '));
                     foreach (const QStringRef &suffix, suffixes)
                         if (fileName.endsWith(suffix)) {
                             suffixOk = true;