vtkIOSSUtilities: avoid false cache hits
Improving the key used to locate cache for a GroupingEntity.
Ioss::SideBlock
s all seem to have the same generic name. This was
causing false cache hits resulting in bug paraview/paraview#21185 (closed). Fixed that. The cache
key now uses both name and generic name. That ends up being a good
key to avoid such false hits.
Addresses paraview/paraview#21185 (closed)
Backport: paraview/release
Edited by Utkarsh Ayachit