fix nasty bug in evaluator (QContiguousCache use ints, we must normalize indexes)
fix nasty bug in evaluator (QContiguousCache use ints, we must
normalize indexes)

d-tk/dtk,d-tk/dtk,d-tk/dtk,NicolasSchnitzler/dtk,NicolasSchnitzler/dtk,rdebroiz/dtk,d-tk/dtk,d-tk/dtk,NicolasSchnitzler/dtk,rdebroiz/dtk,NicolasSchnitzler/dtk,d-tk/dtk,rdebroiz/dtk,rdebroiz/dtk