$ git clone -n https://src.fedoraproject.org/rpms/rust-standback.git /var/lib/mock/f40-build-2658148-66917/root/chroot_tmpdir/scmroot/rust-standback
Cloning into '/var/lib/mock/f40-build-2658148-66917/root/chroot_tmpdir/scmroot/rust-standback'...
$ git fetch origin 2abcec886373e1f5e8ad6b103502b26a5778bbd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-standback
 * [new ref]         2abcec886373e1f5e8ad6b103502b26a5778bbd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2abcec8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild