Commit d02eaadf switches from qSort to
std::sort: this produces a different order, since
- the items in this case have the same sorting index, which is -1 (see
  sortListToMatchSequence in rdf/document.cpp), because their id's do
  not match the id's of the sequence
- std::sort does nothing, since the list is "already sorted"

Thus, change the order of the items in the debug output of the resulting
document to match the order of the items in the RDF document.