Merge topic 'fix-lowmem'

fafc5577 Fix normal source update
fd2fcda9 Fix naming of fragment-generated normals

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Reviewed-by: Jaswant Panchumarti (Kitware) <jaswant.panchumarti@kitware.com>
Merge-request: !11417