immutable bug?

[David Nadlinger]

On Sunday, 12 January 2014 at 19:36:10 UTC, David Nadlinger wrote:
> On Sunday, 12 January 2014 at 18:09:59 UTC, Andrei Alexandrescu 
> wrote:
>> Put $150 on this. 
>> https://www.bountysource.com/issues/1325974-type-system-breaking-caused-by-implicit-conversion-for-the-value-returned-from-pure-function
>
> I posted a fix for this issue (i.e. the one on which the bounty 
> was set).
>
> Now tackling Manu's example, which turns out to exhibit a 
> slightly different bug.

Filed as https://d.puremagic.com/issues/show_bug.cgi?id=11909, 
fix at https://github.com/D-Programming-Language/dmd/pull/3085.

David