$ git clone -n https://src.fedoraproject.org/rpms/rust-const-random.git /var/lib/mock/f40-build-2061453-49167/root/chroot_tmpdir/scmroot/rust-const-random
Cloning into '/var/lib/mock/f40-build-2061453-49167/root/chroot_tmpdir/scmroot/rust-const-random'...
$ git fetch origin 6246d8974ea620e84b18bb92b050b51c80ef2712:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-const-random
 * [new ref]         6246d8974ea620e84b18bb92b050b51c80ef2712 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6246d89 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild