Example case ff-pm/flow-over-cube-3d/ does not compile with DuMux v3.6

[IshaanDesai]

Description

The example case examples/ff-pm/flow-over-cube-3d/ fails to compile as part of the test suite compilation. The error is:

/dune-modules/dumux-adapter/examples/ff-pm/flow-over-cube-3d/ffproblem-reversed.hh: In member function ‘Dumux::StokesSubProblem<TypeTag>::BoundaryTypes Dumux::StokesSubProblem<TypeTag>::boundaryTypes(const Element&, const SubControlVolumeFace&) const’:
/dune-modules/dumux-adapter/examples/ff-pm/flow-over-cube-3d/ffproblem-reversed.hh:193:20: error: ‘dataIdsWereSet_setBeaversJoseph’ was not declared in this scope
  193 |             assert(dataIdsWereSet_setBeaversJoseph);
      |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Environment

Ubuntu 22.04 LTS, preCICE 2.5.0, DuMuX 3.6, DuMuX-preCICE 1.0

Steps to reproduce

After building the adapter, go to dumux-adapter/build-cmake and run make -j1 build_tests.

[ajaust]

Looks like a copy and paste error to me. This should probably just be a

assert(dataIdsWereSet_);

in line 193.