QMap needs a QMap<Key, T>::useAlphanumericalSorting(bool) options to disable sorting when position iterators are used via insert/insertMulti

QMap::insert(const_iterator, Key, T) and QMap::insertMulti(const_iterator, Key, T) will keep a alphanumerically sorted node list due to a simple checking function call (see [a]).
This should include as user controllable flag to disable/enable (see [b]);

[a]: if (!qMapLessThanKey(n->key, akey))
return this->insertMulti(akey, avalue); // ignore hint

[b]: if ( use_alphanumerical_sorting && !qMapLessThanKey(n->key, akey))
return this->insertMulti(akey, avalue); // ignore hint