Fixed bug in MetaScalarArray node.
Fixed bug in MetaScalarArray node.

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