$ git clone -n https://src.fedoraproject.org/rpms/rust-binfmt-dispatcher.git /var/lib/mock/f45-build-40465-772/root/chroot_tmpdir/scmroot/rust-binfmt-dispatcher
Cloning into '/var/lib/mock/f45-build-40465-772/root/chroot_tmpdir/scmroot/rust-binfmt-dispatcher'...
$ git fetch origin a7139fc8ae2714ea3209edaf9b7facc9f705bd6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-binfmt-dispatcher
 * [new ref]         a7139fc8ae2714ea3209edaf9b7facc9f705bd6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7139fc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild