``` tests/firedrake/multigrid/test_poisson_gmg.py::test_baseform_coarsening[scalar-mg] ``` is stochastically failing on `main`. In https://github.com/firedrakeproject/firedrake/pull/5420 we start skipping the test. We should make sure to revisit this and unskip it soon. Note that https://github.com/firedrakeproject/firedrake/pull/5386 is a previous attempt to debug this. It might be a useful reference.
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