In null_lookup(), do the needed cleanup instead of panicing saying the cleanup is needed.
In null_lookup(), do the needed cleanup instead of panicing saying
the cleanup is needed.

Reported by:	kris, pho
Tested by:	pho
MFC after:	2 weeks

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase