clear our data when we parse

src/plasma/configloader.cpp

@@ -66,6 +66,8 @@ private:
 
 void ConfigLoaderPrivate::parse(ConfigLoader *loader, QIODevice *xml)
 {
+    clearData();
+    loader->clearItems();
     QXmlInputSource source(xml);
     QXmlSimpleReader reader;
     ConfigLoaderHandler handler(loader, this);

src/plasma/private/configloader_p.h

@@ -34,6 +34,11 @@ class ConfigLoaderPrivate
         }
 
         ~ConfigLoaderPrivate()
+        {
+            clearData();
+        }
+
+        void clearData()
         {
             qDeleteAll(bools);
             qDeleteAll(strings);