1 files changed, 3 insertions, 1 deletions
diff --git a/mappingtreemodel.cpp b/mappingtreemodel.cpp
index 3dabe16..8651a4a 100644
--- a/mappingtreemodel.cpp
+++ b/mappingtreemodel.cpp
@@ -226,7 +226,9 @@ bool MappingTreeModel::addChild(const QVariant &name, const QModelIndex &parent)
             int where = lowerBound(pItem, mSelectChildQ->value(1), Name);
             if(insertRows(where, 1, parent)){
                 QModelIndex newIdx = index(where, 0, parent);
-                setData(newIdx, mSelectChildQ->value(1), NameRole);
+                if(!setData(newIdx, mSelectChildQ->value(1), NameRole)){
+                    return false;
+                }
                 setData(newIdx, mSelectChildQ->value(0), IdRole);
                 setData(newIdx, mSelectChildQ->value(2), AddedRole);
             }