$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-utils.git /var/lib/mock/f39-build-1523145-35987/root/chroot_tmpdir/scmroot/rust-nu-utils
Cloning into '/var/lib/mock/f39-build-1523145-35987/root/chroot_tmpdir/scmroot/rust-nu-utils'...
$ git fetch origin d7a36c2948d8b842ca2bf1d047472bcabc839fd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-utils
 * [new ref]         d7a36c2948d8b842ca2bf1d047472bcabc839fd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7a36c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild