$ git clone -n https://src.fedoraproject.org/rpms/rust-equator-macro.git /var/lib/mock/f45-build-41578-784/root/chroot_tmpdir/scmroot/rust-equator-macro
Cloning into '/var/lib/mock/f45-build-41578-784/root/chroot_tmpdir/scmroot/rust-equator-macro'...
$ git fetch origin 7c3577e674ade46934fab55b41da83df3bb56de1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-equator-macro
 * [new ref]         7c3577e674ade46934fab55b41da83df3bb56de1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c3577e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild