Re: [PATCH v11 10/10] convert: add round trip check based on 'core.checkRoundtripEncoding'

> Eric Sunshine <sunshine@sunshineco.com> writes:
>> On Fri, Mar 9, 2018 at 12:35 PM,  <lars.schneider@autodesk.com> wrote:
>>>         /* Don't encode to the default encoding */
>>> -       if (!strcasecmp(value, default_encoding))
>>> +       if (is_encoding_utf8(value) && is_encoding_utf8(default_encoding))
>>>                 return NULL;
>>
>> This change belongs in 6/10, not 10/10, methinks.
>
> It is actually worse than that, no?  When default_encoding is
> (somehow) configured not to be UTF-8, e.g. "Shift_JIS", we used to
> avoid converting from Shift_JIS to Shift_JIS, but the optimization
> no longer happens with this code.
>
> In any case, I think same_encoding() is probably a good thing to use
> here at step 6/10, so the point is moot, I guess.