ntype = n_intro.n_type.mtype
end
# check
- if ntype ==null or ntype != n_type.mtype then return
+ if ntype == null or ntype != n_type.mtype or mpropdef == null then return
modelbuilder.advice(n_type, "useless-signature", "Warning: useless type repetition on redefined attribute `{mpropdef.name}`")
end
end