$ git clone -n https://src.fedoraproject.org/rpms/rust-countme.git /var/lib/mock/f40-build-2658949-66918/root/chroot_tmpdir/scmroot/rust-countme
Cloning into '/var/lib/mock/f40-build-2658949-66918/root/chroot_tmpdir/scmroot/rust-countme'...
$ git fetch origin a57a7c9d3f99088351ea5d62466c7b0d2ff741e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-countme
 * [new ref]         a57a7c9d3f99088351ea5d62466c7b0d2ff741e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a57a7c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild