$ git clone -n https://src.fedoraproject.org/rpms/rust-simple-file-manifest.git /var/lib/mock/f45-build-44968-820/root/chroot_tmpdir/scmroot/rust-simple-file-manifest
Cloning into '/var/lib/mock/f45-build-44968-820/root/chroot_tmpdir/scmroot/rust-simple-file-manifest'...
$ git fetch origin a85cea2e97b30cf3be57bbb1f1b318ab26c18781:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-simple-file-manifest
 * [new ref]         a85cea2e97b30cf3be57bbb1f1b318ab26c18781 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a85cea2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild