$ git clone -n https://src.fedoraproject.org/rpms/rust-enumber.git /var/lib/mock/f45-build-41470-782/root/chroot_tmpdir/scmroot/rust-enumber
Cloning into '/var/lib/mock/f45-build-41470-782/root/chroot_tmpdir/scmroot/rust-enumber'...
$ git fetch origin 31cbffa737c8ac77173e60efb68392bee440273d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enumber
 * [new ref]         31cbffa737c8ac77173e60efb68392bee440273d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31cbffa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild