[BUG] Branch Edge Merge After Node Deletion

[matKlju]

Bug description:
When a node is deleted from one branch of a conditional/MCQ flow, the branch reconnects correctly, but its connection visually merges with another branch leading to the same target node.

As a result, only one visible path is shown, making it appear as if the second branch no longer exists.

Steps to reproduce:

1. Create an MCQ or Conditional node with at least two output paths
2. Add a separate node to each path
3. Connect both paths to the same downstream node (shared/convergence node)
4. Delete one of the intermediate nodes
5. Observe the reconnected edge layout

This makes branch ownership and flow readability unclear.

Expected behavior:

When a node is deleted from a branch that later converges with another branch:

• The deleted node is removed
• The downstream edge is disconnected
• The user must be able to clearly see that both "Jah" and "Ei" branches still exist

Screenshots:
Problem:

Expected result:

Additional information:

Observed on conditional and MCQ nodes with multiple output paths.

[matKlju]

AT - passed. Works as specified.