[QDS FlowView] Simulating Conditions

https://doc.qt.io/qtdesignstudio/studio-flow-conditions.html
>Create an action area for the component that will trigger the condition and connect it to the flow decision.
QDS crashed after connect the existing transition to FlowDecision

FlowDecision can connect to itself, cannot see the use case of it

> Select a transition line in the Navigator or 2D view and add a descriptive text in the Question field in Properties to represent a choice in the selection dialog.

• the dialog won't popup if Question is empty on transition line is specificized, should give a warning of it
• the description does not guide which transition line shall be selected
  • it shall be the line from FlowDecision to FlowItem
  • there is no way to cancel the transition

FlowDecision seems a feature only for demo,cannot used in real, maybe it shall provide a API of decision to embedded function or bool property in transition.

delete the FlowDecision make the transition line connect from one FlowItem to another FlowItem