Add an error message for q-point grid with k-point symmetries
Description
Add an error message for q-point grid with k-point symmetries.
News snippet
Add an error message for q-point grid with k-point symmetries.
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.
Edited by Nicolas Tancogne-Dejean