backend assignment doesn't default the strategy as well.
w7x.simulation.vmec.Vmec(backend="local") doesn't work as expected (still tries to use default strategy).
Currently requires w7x.simulation.vmec.Vmec(strategy="local").
w7x.simulation.vmec.Vmec(backend="local") doesn't work as expected (still tries to use default strategy).
Currently requires w7x.simulation.vmec.Vmec(strategy="local").