Map Cleanup and Topology Buffers

When you create a topology buffer for a network topology, map 3D will assign object data to the topology linework you create for said buffer.  In order to remove that object data to use this linework for other applications (creating alignments, etc), then you need to delete the topology in order to get the object data to be automatically removed.  I had an issue using drawing cleanup and converting arcs to polylines.  I could not cleanup the drawing until the linework was no longer associated with a topology.