commit f82f98cb824955794ff3501849406e4806196527
Author: Albert Astals Cid <albert.astals@canonical.com>
Date:   Thu Oct 3 11:12:53 2013 +0200

    Fix rowsInserted not being emmited in some cases in QSortFilterProxyModel
    
    If the source model of the QSortFilterProxyModel it
    happened that the mapping for the root was not created since
    mapFromSource does not create it if the model index is not valid.
    This made _q_sourceDataChanged go into the
       // Don't care, since we don't have mapping for this index
    if and not emit the new row that was inserted because of the data change
    
    Change-Id: I2b410cc793568ddf7a1083c4252ee7fa3e90fe46

diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.cpp b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
index 67b0d98..1235da3 100644
--- a/src/corelib/itemmodels/qsortfilterproxymodel.cpp
+++ b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
@@ -1435,8 +1435,11 @@ void QSortFilterProxyModelPrivate::_q_sourceRowsMoved(
 
     QList<QPersistentModelIndex> parents;
     parents << q->mapFromSource(sourceParent);
-    if (sourceParent != destParent)
-      parents << q->mapFromSource(destParent);
+    create_mapping(sourceParent);
+    if (sourceParent != destParent) {
+        parents << q->mapFromSource(destParent);
+        create_mapping(destParent);
+    }
     emit q->layoutChanged(parents);
 }