$ git clone -n https://src.fedoraproject.org/rpms/lua-lpeg-patterns.git /var/lib/mock/f45-build-17671-502/root/chroot_tmpdir/scmroot/lua-lpeg-patterns
Cloning into '/var/lib/mock/f45-build-17671-502/root/chroot_tmpdir/scmroot/lua-lpeg-patterns'...
$ git fetch origin 62b972e5e781ecc9d822613dd7c6357a673c8e50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-lpeg-patterns
 * [new ref]         62b972e5e781ecc9d822613dd7c6357a673c8e50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62b972e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild