$ git clone -n https://src.fedoraproject.org/rpms/rubygem-tty-color.git /var/lib/mock/f39-build-1462644-33353/root/chroot_tmpdir/scmroot/rubygem-tty-color
Cloning into '/var/lib/mock/f39-build-1462644-33353/root/chroot_tmpdir/scmroot/rubygem-tty-color'...
$ git fetch origin d4013f65bba97ba6275cc00f558c93d29dce37ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-tty-color
 * [new ref]         d4013f65bba97ba6275cc00f558c93d29dce37ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4013f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild