As far as I'm aware, no one has actually done it, though I believe Cireson Portal is the closest, I believe they call the task when you open one of theirs and complete it.... they pass the data along.
I tried to make sense of it all but the effort was too much with too little time to spare.
Executing tasks - Run Task A from Task B
If you do figure it out, please share the
knowledge as a reply on your thread or provide a sample on the TechNet Gallary. As much as SCSM is a dead product, it's still being used by people.
Some other threads I managed to find
[Failed] Force Form refresh
Good Luck