$ git clone -n https://src.fedoraproject.org/rpms/fprettify.git /var/lib/mock/f45-build-9212-400/root/chroot_tmpdir/scmroot/fprettify
Cloning into '/var/lib/mock/f45-build-9212-400/root/chroot_tmpdir/scmroot/fprettify'...
$ git fetch origin 4cdcf91116e71bc0f7e3ca109181516cdf860c96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fprettify
 * [new ref]         4cdcf91116e71bc0f7e3ca109181516cdf860c96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4cdcf91 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild