The edge tool `New Flow (flow)` produces invalid SysMLv2

[gcoutable]

Steps to reproduce

1. In a SysMLv2 model, create two ActionUsage (A1, A2) graphical nodes.
2. Create a ReferenceUsage (parameter) with a direction on A1 and A2; a border node should be created for each ReferenceUsage.
3. Create a flow between the border node of A1 and the border node of A2

Expected behavior

• If the parameter has a direction, the edge tool should make the corresponding FlowEnd of the created FlowUsage redefine the parameter directly.
• If the parameter has no direction, the edge tool should create a ReferenceUsage with a direction within the parameter and make the corresponding FlowEnd of the created FlowUsage redefine the created ReferenceUsage

Actual behavior

No matter what, the edge tool creates a ReferenceUsage without direction within the parameter and makes the corresponding FlowEnd of the created FlowUsage redefine the created ReferenceUsage.