$ git clone -n https://src.fedoraproject.org/rpms/sugar-moon.git /var/lib/mock/f45-build-36591-706/root/chroot_tmpdir/scmroot/sugar-moon
Cloning into '/var/lib/mock/f45-build-36591-706/root/chroot_tmpdir/scmroot/sugar-moon'...
$ git fetch origin b9ab3485f9938ebcc6a181262eeea1800e227b03:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sugar-moon
 * [new ref]         b9ab3485f9938ebcc6a181262eeea1800e227b03 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9ab348 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild