Recent GUI refactorings intended that we would leave only one mode of drawing information sets in the GUI. This would remove (1) turning them off entirely (which just about never makes sense) and (2) turning off the indicator for multi-level information sets.
This was done in commit b584210.
It appears this was not done correctly and it was (2) which was kept and multi-level was disabled.
See tests/test_games/subgames.efg for one example - absent-minded information set 1.4 should have such a "continuation" arrow drawn, but no longer does.
Recent GUI refactorings intended that we would leave only one mode of drawing information sets in the GUI. This would remove (1) turning them off entirely (which just about never makes sense) and (2) turning off the indicator for multi-level information sets.
This was done in commit b584210.
It appears this was not done correctly and it was (2) which was kept and multi-level was disabled.
See
tests/test_games/subgames.efgfor one example - absent-minded information set 1.4 should have such a "continuation" arrow drawn, but no longer does.