$ git clone -n https://src.fedoraproject.org/rpms/sgx-rpm-macros.git /var/lib/mock/f45-build-35849-699/root/chroot_tmpdir/scmroot/sgx-rpm-macros
Cloning into '/var/lib/mock/f45-build-35849-699/root/chroot_tmpdir/scmroot/sgx-rpm-macros'...
$ git fetch origin 8562a0e9d2f0605920c24ce6c24bce6c5bbc188b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sgx-rpm-macros
 * [new ref]         8562a0e9d2f0605920c24ce6c24bce6c5bbc188b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8562a0e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild