Describe the bug

When programmatically creating an activity diagram, if you drop a ControlFlow that has its source and target set into the diagram and the diagram already contains images of the source and target elements, the control flow image is not automatically connected to the source and target images.

To Reproduce

Steps to reproduce the behavior:

1. Create an Activity and an Activity Diagram programmatically
2. Create two actions, A and B.
3. Drop actions A and B onto the diagram
4. Create a ControlFlow. Set its source and target to actions A and B.
5. Drop the ControlFlow onto the diagram.

Expected behavior

The ControlFlow should connect automatically to the end-point images.

Screenshots

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OS

• Linux (Please put in notes the specific distro)
• macOS
• Windows

Version

Version of Gaphor: 2.26.0

Additional information

Add any other context about the problem here.