Bug#1007798: fenics-dolfinx: sporadic python MPI unit test failure in test_sub_bbtree_box: incompatible constructor arguments

[Drew Parsons]

Source: fenics-dolfinx
Version: 1:0.3.0-13+b1
Severity: normal
Control: forwarded -1 https://github.com/FEniCS/dolfinx/issues/2070

The rebuild of dolfinx against PETSc 3.16 has started showing a debci
failure in the python MPI unit test failure test_sub_bbtree_box (in
python/test/unit/geometry/test_bounding_box_tree.py).

The failure is not consistent.  It can be reproduced directly from the
geometry test dir (copy dolfinx_utils into it first), with

  mpirun -n 2 python3 -mpytest test_bounding_box_tree.py


But while that reproduces the failure, it does not *always* reproduce
it. Sometimes the test passes.

Bug filed upstream at https://github.com/FEniCS/dolfinx/issues/2070