$ git clone -n https://src.fedoraproject.org/rpms/rust-minus.git /var/lib/mock/f40-build-2571261-62241/root/chroot_tmpdir/scmroot/rust-minus
Cloning into '/var/lib/mock/f40-build-2571261-62241/root/chroot_tmpdir/scmroot/rust-minus'...
$ git fetch origin a06bf25e5c3f0a6b06fbf1d3b27b807949c3c92b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-minus
 * [new ref]         a06bf25e5c3f0a6b06fbf1d3b27b807949c3c92b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a06bf25 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild