Segfault upon modifying immutable AA in static this

["Nordlöw" via Digitalmars-d-learn]

On Saturday, 24 January 2015 at 13:29:36 UTC, Nordlöw wrote:
> The issue originates from module level intialization of static 
> immutable AAs at
>
> https://github.com/nordlow/justd/blob/master/conv_ex.d
>
> Do I have to change the initialization of the AAs to be 
> explicitly inline at definition of the AAs or can I preserve my 
> convenient foreach over the AAs in the `static this` to 
> automatically get the integer value to be stored?
>
> Note that this does not segdefault on latest stable DMD 2.066.

Also note that removing the immutable keyword from the AAs make 
by conversion function non-pure which I would like to avoid if 
possible.