croak "Invalid attribute '${attribute}'" unless $self->can($attribute);
croak "Object has not been saved yet" unless $self->id || $verbatim;
- return ref($language_id) eq 'SL::DB::Language' ? $language_id->id : $language_id;
+ return (ref($language_id) eq 'SL::DB::Language' ? $language_id->id : $language_id) || undef;
}
sub _find_translation {