Fixed conceptual error resulting in subtle bug.
Fixed conceptual error resulting in subtle bug.

This had to do with the way in which order string histograms are
reduced and broadcasted. Fixed problem for keys, but a problem
remains for the values themselves which must be handled separately.

biddisco/VTK,msmolens/VTK,aashish24/VTK-old,biddisco/VTK,gram526/VTK,ashray/VTK-EVM,SimVascular/VTK,sumedhasingla/VTK,msmolens/VTK,johnkit/vtk-dev,candy7393/VTK,msmolens/VTK,keithroe/vtkoptix,sumedhasingla/VTK,candy7393/VTK,sankhesh/VTK,hendradarwin/VTK,keithroe/vtkoptix,sumedhasingla/VTK,candy7393/VTK,msmolens/VTK,ashray/VTK-EVM,biddisco/VTK,collects/VTK,spthaolt/VTK,spthaolt/VTK,hendradarwin/VTK,biddisco/VTK,berendkleinhaneveld/VTK,SimVascular/VTK,jmerkow/VTK,msmolens/VTK,berendkleinhaneveld/VTK,ashray/VTK-EVM,hendradarwin/VTK,cjh1/VTK,sankhesh/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,SimVascular/VTK,gram526/VTK,jmerkow/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,SimVascular/VTK,hendradarwin/VTK,spthaolt/VTK,aashish24/VTK-old,cjh1/VTK,demarle/VTK,demarle/VTK,spthaolt/VTK,ashray/VTK-EVM,gram526/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,sumedhasingla/VTK,keithroe/vtkoptix,SimVascular/VTK,sankhesh/VTK,gram526/VTK,jmerkow/VTK,aashish24/VTK-old,jmerkow/VTK,aashish24/VTK-old,mspark93/VTK,jmerkow/VTK,johnkit/vtk-dev,collects/VTK,cjh1/VTK,johnkit/vtk-dev,hendradarwin/VTK,biddisco/VTK,jmerkow/VTK,sankhesh/VTK,jmerkow/VTK,sumedhasingla/VTK,sumedhasingla/VTK,sumedhasingla/VTK,sumedhasingla/VTK,johnkit/vtk-dev,candy7393/VTK,johnkit/vtk-dev,aashish24/VTK-old,demarle/VTK,msmolens/VTK,sankhesh/VTK,cjh1/VTK,mspark93/VTK,msmolens/VTK,candy7393/VTK,ashray/VTK-EVM,mspark93/VTK,cjh1/VTK,demarle/VTK,biddisco/VTK,spthaolt/VTK,mspark93/VTK,keithroe/vtkoptix,mspark93/VTK,candy7393/VTK,keithroe/vtkoptix,keithroe/vtkoptix,sankhesh/VTK,candy7393/VTK,spthaolt/VTK,candy7393/VTK,hendradarwin/VTK,gram526/VTK,aashish24/VTK-old,spthaolt/VTK,SimVascular/VTK,mspark93/VTK,msmolens/VTK,demarle/VTK,collects/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,keithroe/vtkoptix,mspark93/VTK,keithroe/vtkoptix,collects/VTK,jmerkow/VTK,demarle/VTK,johnkit/vtk-dev,SimVascular/VTK,sankhesh/VTK,hendradarwin/VTK,berendkleinhaneveld/VTK,biddisco/VTK,johnkit/vtk-dev,gram526/VTK,collects/VTK,SimVascular/VTK,gram526/VTK,demarle/VTK,gram526/VTK,demarle/VTK,collects/VTK,mspark93/VTK,cjh1/VTK