$ git clone -n https://src.fedoraproject.org/rpms/rust-enum-iterator.git /var/lib/mock/f45-build-41462-782/root/chroot_tmpdir/scmroot/rust-enum-iterator
Cloning into '/var/lib/mock/f45-build-41462-782/root/chroot_tmpdir/scmroot/rust-enum-iterator'...
$ git fetch origin 0e8abdc176635dfa9f715c837e046fdbe5e89ed4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enum-iterator
 * [new ref]         0e8abdc176635dfa9f715c837e046fdbe5e89ed4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e8abdc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild