Comment 7 for bug 2058415

This also affects libdune-grid-dev by breaking the `subsamplingvtktest` test of the package. Steps to reproduce this locally:

1. Create a new dune module using `duneproject testvtk`, adding `dune-grid` as dependency.
2. Create subdirectory `dune/grid/io/file/test/` in `testvtk`
3. Copy the file `dune-grid/dune/grid/io/file/test/checkvtkfile.hh` from the dune-grid sources to `testvtk/dune/grid/io/file/test/`.
4. Overwrite file ´testvtk/src/testvtk.cc` by the test `dune-grid/dune/grid/io/file/test/subsamplingvtktest.cc` from the dune-grid sources.
5. Build the module using `dunecontrol all` and run `testvtk/build-cmake/src/testvtk`.

The same failure will probably show up when executing the tests while rebuilding the package `libdune-grid-dev`.