No, it's perfect like that.
The return of the last property is actually outside that forEach, [on it's own](https://github.com/caitp/angular.js/blob/2279c7891913ddfa1dd48ebc80fb5f7267576306/src/ng/parse.js#L1056)
So `return undefined` makes perfect sense, since all these `+= 'ifs'` target properties that are in the middle

The only real consequence of this is that when csp is off, if the scope passed to `$parse` is `null`, it will return `undefined`
```js
//csp off
$parse('a.b.c')(null) === undefined

//csp on (and off before this change)
$parse('a.b.c')(null) === null
```
So really, if we care about that, the code should be
```js
code += 'if(s == null) return ' + (!index ? 's' : 'undefined') + ';\n' +
```
making us avoid _breaking changes_ (if you're curious about the code when [csp i](https://github.com/caitp/angular.js/blob/2279c7891913ddfa1dd48ebc80fb5f7267576306/src/ng/parse.js#L894)[s on](https://github.com/caitp/angular.js/blob/2279c7891913ddfa1dd48ebc80fb5f7267576306/src/ng/parse.js#L915), there you go)