On Fri, May 1, 2015 at 9:39 AM, Marcel Taeumel
<marcel.taeumel at student.hpi.uni-potsdam.de> wrote:
> The thing is that the primitive accepts indices < 1 has starting position.
> All projects that rely on this will fails if that primitive is not present.
> So -- and only for strings -- I guess it is fair to simulate the actual
> behavior of the primtive in case of a primtive-fail for strings only.
>
> So, this change will not harm existing projects but ensures that those keep
> on working if the primitive is not existing. Before that update, those
> projects failed unexpectedly.

Right, but that wasn't my question.