$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-ebnf.git /var/lib/mock/f45-build-12662-443/root/chroot_tmpdir/scmroot/golang-modernc-ebnf
Cloning into '/var/lib/mock/f45-build-12662-443/root/chroot_tmpdir/scmroot/golang-modernc-ebnf'...
$ git fetch origin d784ff7242a2edf117c3cab8533435c716353f89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-ebnf
 * [new ref]         d784ff7242a2edf117c3cab8533435c716353f89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d784ff7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild