Usability of "allMembers and derivedMembers traits now only return visible symbols"

[Andrei Alexandrescu via Digitalmars-d]

On 9/3/16 10:50 PM, Basile B. wrote:
> On Saturday, 3 September 2016 at 20:40:57 UTC, Andrei Alexandrescu wrote:
>> Martin, any chance we can undo this change to the language?
>
> The problem is deeper. If he undoes the change then what will happen
> again is that the results of allMembers won't be usable by the other
> traits, e.g getMember, because them are still limited by the protection
> attributes.

Where are the past discussions on this matter? -- Andrei