No point in trying to reset and replace if nothing is selected.

src/modules/partition/gui/ChoicePage.cpp

@@ -460,6 +460,9 @@ void
 ChoicePage::doReplaceSelectedPartition( const QModelIndex& current,
                                         const QModelIndex& previous )
 {
+    if ( !current.isValid() )
+        return;
+
     ScanningDialog::run( QtConcurrent::run( [ = ]
     {
         QMutexLocker locker( &m_coreMutex );