dsl: Expand derivative #8040

Job	Run time
pytest-ubuntu-py311-gcc11-cxxnoomp-base	48s
pytest-ubuntu-py310-gcc10-noomp-adjoint	47s
pytest-ubuntu-py39-gcc14-omp-adjoint	49s
pytest-ubuntu-py312-gcc12-cxxomp-adjoint	49s
pytest-ubuntu-py310-gcc10-noomp-base	48s
pytest-ubuntu-py311-gcc11-cxxnoomp-adjoint	47s
pytest-ubuntu-py39-gcc9-omp-adjoint	49s
pytest-ubuntu-py39-gcc14-omp-base	49s
pytest-ubuntu-py312-gcc13-omp-base	48s
pytest-ubuntu-py312-gcc13-omp-adjoint	48s
pytest-ubuntu-py312-gcc12-cxxomp-base	47s
pytest-docker-py39-gcc-omp-adjoint	50s
pytest-docker-py39-gcc-omp-base	50s
pytest-docker-py39-icx-omp-adjoint	50s
pytest-docker-py39-icx-omp-base	48s
pytest-osx-py312-clang-omp-base	49s
pytest-ubuntu-py39-gcc9-omp-base	47s
	13m 43s

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