Subject: Re: [PATCH v2 2/2] update-index: refresh should rewrite index in case of racy timestamps

From: Junio C Hamano <[email-masked]>
Date: Wed, 05 Jan 2022 13:03:57 -0800

"Marc Strapetz via GitGitGadget" <[email-masked]> writes:

> +test_expect_success '--refresh has no racy timestamps to fix' '
> +	reset_files &&
> +	test-tool chmtime =1234567891 .git/index &&

Don't some people use Git on VFAT where the time resolution is 2
seconds?  1234567890 and 1234567891 differ only by one second, so
chmtime may not be able to store one of them exactly, so I am not
sure if this guarantees "no racy timestamps to fix".