[!336] fix typo

Merge branch 'feature/fix-typo' into 'master'

See merge request [extensions/dune-codegen!336]

  [extensions/dune-codegen!336]: Noneextensions/dune-codegen/merge_requests/336

python/dune/codegen/blockstructured/accumulation.py

@@ -16,7 +16,7 @@ from loopy.match import Writes
 @accumulation_mixin("blockstructured")
 class BlockStructuredAccumulationMixin(GenericAccumulationMixin):
     def generate_accumulation_instruction(self, expr):
-        if get_global_context_value("form_type") == "jacobians":
+        if get_global_context_value("form_type") == "jacobian":
             return generate_accumulation_instruction(expr, self)
         else:
             return generate_accumulation_instruction_vectorized(expr, self)