Start Trace outputs unnecessary message

When you start the Python trace recorder, you get a confusing and ultimately meaningless message that looks like an error. To replicate, simply select Tools -> Start Trace and then accept the default options by clicking OK. When you do, the Output Messages window pops up with the following content.

This amounts to something producing

updating active connection Connection (builtin:) [3]

which is captured by the VTK output window.