$ git clone -n https://src.fedoraproject.org/rpms/rust-users.git /var/lib/mock/f38-build-side-43-rust-devel-1416804-31457/root/chroot_tmpdir/scmroot/rust-users
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1416804-31457/root/chroot_tmpdir/scmroot/rust-users'...
$ git fetch origin 38f0ad693ccd6fb5b3323b6d993774be48f74704:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-users
 * [new ref]         38f0ad693ccd6fb5b3323b6d993774be48f74704 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38f0ad6 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild