AA ignores disabling of postblit for key types

[Nordlöw via Digitalmars-d]

On Friday, 21 October 2016 at 12:18:28 UTC, Nordlöw wrote:
>     this(this) { assert(false); }

If this is changed to


       @disable this(this);


I instead get a segfault because of a double free:


before
freeing:591490
after
freeing:591490
*** Error in ...

Pretty serious bug.