[bugfix] Fix vectorization with modified quadrature tuple

The unstructured stuff changed the implementation of the parallel key
to depend on the quadrature tuple. This means that we need to make sure
that the state of the quadrature tuple is correctly all the time!

python/dune/codegen/sumfact/vectorization.py

@@ -367,6 +367,8 @@ def level1_optimal_vectorization_strategy(sumfacts, width):
 
 
 def level2_optimal_vectorization_strategy(sumfacts, width, qp):
+    set_quadrature_points(qp)
+
     # Find the sets of simultaneously realizable kernels
     keys = frozenset(sf.parallel_key for sf in sumfacts)