$ git clone -n https://src.fedoraproject.org/rpms/rust-unix_socket.git /var/lib/mock/f40-build-2040532-48364/root/chroot_tmpdir/scmroot/rust-unix_socket
Cloning into '/var/lib/mock/f40-build-2040532-48364/root/chroot_tmpdir/scmroot/rust-unix_socket'...
$ git fetch origin 4e5adbe4cea0df64a5ced708dc67e15668ad4410:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unix_socket
 * [new ref]         4e5adbe4cea0df64a5ced708dc67e15668ad4410 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e5adbe Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild