BLUE refinement not working in 3D
I'm having trouble with the BLUE refinement strategy of UGGrid. It works in 2D and the documentation suggests that it also works in 3D. However, no refinement seems to take place here. Attached is a minimal example which demonstrates the problem: test-ugBlue.cc
Some further data:
UG is version 3.12.1,
dune-grid and dune-common are version 3.0,
the os is openSuse 13.2,
the compiler is g++ 5