$ git clone -n https://src.fedoraproject.org/rpms/golang-github-rickb777-plural.git /var/lib/mock/f45-build-12409-442/root/chroot_tmpdir/scmroot/golang-github-rickb777-plural
Cloning into '/var/lib/mock/f45-build-12409-442/root/chroot_tmpdir/scmroot/golang-github-rickb777-plural'...
$ git fetch origin 46e940d151b697a773d2c1ed8b99ea241c11f3e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-rickb777-plural
 * [new ref]         46e940d151b697a773d2c1ed8b99ea241c11f3e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46e940d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild