Option mfs=3 gives wrong result
mfs=3 option of the
model keyword gives wrong results.
This can for example be verified by adding
Once this is fixed, we should add tests that check that all the possible values of
mfs give the same result on a given model.
mfs is also broken in version 4.6.1. Several other problems with
mfs have already be fixed in the 4.6 branch, but the present issue is still unfixed.