Workflow doesn't trigger on change of AssignedToUser
I want to run a workflow whenever the AssignedToUser is updated on an incident, and is set to a specific user. I isolated this workflow in its own management pack so I could craft the condition as below. However, when I update the assigned to user, my workflow isn't triggered. Am I doing it wrong ? Or is this a bug or by design ?
<Rule ID="WorkflowSubscription_beda1dfa_06b2_41ea_a5a2_543411650eac" Enabled="true" Target="Connectors!System.WorkItem.SMARunbookActivity.WorkflowTarget" ConfirmDelivery="true" Remotable="true" Priority="Normal" DiscardLevel="100">