Return node is only executed if its explicitly connected

[Naros]

Describe the bug

Given the following graph:

The VM will execute the F 00 node and the Branch node, immediately exiting the function call. This results in the function's return value being set to null rather than 3. If the False output pin from the Branch node were connected to the Return Node, then the output would have been 3 as well.

Expected behavior

Any top-level (non-nested) control flow pin should implicitly be connected to the Return Node if one exists and has return values. This guarantees that the graph's execution works like that of a text-based program, i.e.:

func f00:
  if false:
    for x in range(1, 10):
      # do loop stuff
  return 3

Actual behavior

The Return Node only fires when the control flow exits the first for-loop's completed pin.

How to Reproduce?

No response

Godot full version

No response

Orchestrator version

2.1.rc3

Additional information

No response