Avoid the first step of Chebyshev when possible, as this is expansive for nothing in this cases.
Description
Avoid the first step of Chebyshev when possible, as this is expansive for nothing in this cases.
News snippet
Improvement for the Chebyshev filtering.
Checklist
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I have checked that my code follows the Octopus coding standards -
I have added tests for all the new features added in this request.