Fix a very subtile problem that causes unnessary numbers of objects backing a single logical object. Submitted by:	Alan Cox <alc@cs.rice.edu>
Fix a very subtile problem that causes unnessary numbers of objects backing
a single logical object.
Submitted by:	Alan Cox <alc@cs.rice.edu>

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