$ git clone -n https://src.fedoraproject.org/rpms/rust-clap-num.git /var/lib/mock/f45-build-40784-776/root/chroot_tmpdir/scmroot/rust-clap-num
Cloning into '/var/lib/mock/f45-build-40784-776/root/chroot_tmpdir/scmroot/rust-clap-num'...
$ git fetch origin 4e2a4135a6863468c6f1d2944e22074297a82d6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-clap-num
 * [new ref]         4e2a4135a6863468c6f1d2944e22074297a82d6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e2a413 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild