Generality creep

[Andrei Alexandrescu]

On 3/28/19 7:45 AM, ag0aep6g wrote:
> On 28.03.19 12:12, Andrei Alexandrescu wrote:
>> See also the related issue: 
>> https://issues.dlang.org/show_bug.cgi?id=18657
>>
>> Indeed so, thanks. The entire thing with ranges whereby save() does 
>> something else than a mere copy has been a mistake and supporting it 
>> has been an expensive distraction.
> 
> `save` is a red herring with regards to issue 18657.
> 
> The problem isn't RefRange.save, it's RefRange.opAssign.

The problem is RefRange.