$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Cookies.git /var/lib/mock/f39-build-1435246-31980/root/chroot_tmpdir/scmroot/perl-HTTP-Cookies
Cloning into '/var/lib/mock/f39-build-1435246-31980/root/chroot_tmpdir/scmroot/perl-HTTP-Cookies'...
$ git fetch origin 2279a7b9a06ae5a227abad775a4c76abf65a7ef2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Cookies
 * [new ref]         2279a7b9a06ae5a227abad775a4c76abf65a7ef2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2279a7b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild