$ git clone -n https://src.fedoraproject.org/rpms/rust-sval_test.git /var/lib/mock/f39-build-1569701-37722/root/chroot_tmpdir/scmroot/rust-sval_test
Cloning into '/var/lib/mock/f39-build-1569701-37722/root/chroot_tmpdir/scmroot/rust-sval_test'...
$ git fetch origin ab39b15a7e4a3a45855c67f0728df657c4f66a5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sval_test
 * [new ref]         ab39b15a7e4a3a45855c67f0728df657c4f66a5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab39b15 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild