[bugfix] in jacobian accterm splitting

python/dune/perftool/ufl/extract_accumulation_terms.py

@@ -153,10 +153,10 @@ def split_into_accumulation_terms(expr):
                                    if ma.restriction != restriction else ma.expr
                                    for ma in indexed_jac_args}
 
-                    jac_expr = replace_expression(jac_expr, replacemap=replacement)
+                    jac_accum_expr = replace_expression(jac_expr, replacemap=replacement)
 
                     if not isinstance(jac_expr, Zero):
-                        ret.append(AccumulationTerm(jac_expr, test_arg, indexmap, newi))
+                        ret.append(AccumulationTerm(jac_accum_expr, test_arg, indexmap, newi))
         else:
             if not isinstance(replace_expr, Zero):
                 ret.append(AccumulationTerm(replace_expr, test_arg, indexmap, newi))