$ git clone -n https://src.fedoraproject.org/rpms/lua-coxpcall.git /var/lib/mock/f45-build-17650-502/root/chroot_tmpdir/scmroot/lua-coxpcall
Cloning into '/var/lib/mock/f45-build-17650-502/root/chroot_tmpdir/scmroot/lua-coxpcall'...
$ git fetch origin daded1b8b05a2cfce9cc8c171d944052298d6414:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-coxpcall
 * [new ref]         daded1b8b05a2cfce9cc8c171d944052298d6414 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at daded1b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild