Yes this sadly is a 'fix' for an issue I encountered with using UDF while using it with workflow. It would only publish a page which had been detected as changed. Not sure but I figured I shouldn't go messing around with workflow. Implementing change detection for a UDF form would have been a bit time consuming so for now it simply always returns that it has changed. In the long term I would want to make the change detection actually detect if a value has changed! Things that it would have to check for include changes in email recipients and changes in the form. I'm sure there is a couple other cases that would also need to check for but it was fairly low on my todo list. I'll fix that issue up for the next release.