$ git clone -n https://src.fedoraproject.org/rpms/R-Bessel.git /var/lib/mock/f38-build-side-42-init-devel-663631-26641/root/chroot_tmpdir/scmroot/R-Bessel
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-663631-26641/root/chroot_tmpdir/scmroot/R-Bessel'...
$ git fetch origin fcdd8ed6f5647bb4aaee0d8efdadc2dc82365a03:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-Bessel
 * [new ref]         fcdd8ed6f5647bb4aaee0d8efdadc2dc82365a03 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fcdd8ed Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild