Merge branch '66-absolute-access-is-probably-not-copied-correctly-after-_eval_subs' into 'master'

Resolve "Absolute access is probably not copied correctly after _eval_subs()"

Closes #66

See merge request pycodegen/pystencils!319

pystencils/field.py

@@ -739,6 +739,7 @@ class Field:
             return Field.Access(self.field,
                                 tuple(sp.sympify(a).subs(old, new) for a in self.offsets),
                                 tuple(sp.sympify(a).subs(old, new) for a in self.index),
+                                is_absolute_access=self.is_absolute_access,
                                 dtype=self.dtype)
 
         @property