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Re: How to undo previously set configuration?




On Fri, Apr 6, 2018 at 4:55 PM, Olaf Hering <olaf@xxxxxxxxx> wrote:
>
> This does not work. Initially I copied the global config into the repo and set all unwanted values to <empty>, like 'smtpuser='. Perhaps the config parser recognized that fact, but the consumer does not?
>

Today someone asked on #git for a way to disable diff.external for a
single command.
Without thinking much I suggested $git -c diff.external= diff; which fails with:
`fatal: cannot run : No such file or directory`

In this particular case there was `--no-ext-diff` to get around this
and the case was promptly resolved.
Just another another example where setting configuration values to
"empty" doesn't translate to "disable this option".