Arrow keys doesn't select objects on the scene hierarchy

[samvila]

Operating system or device, Godot version, GPU Model and driver (if graphics related):
Godot 3.0 Alpha 2, Windows 10 64 bit

Issue description:
Arrow keys doesn't select objects on the scene hierarchy, please see this video as reference:
https://youtu.be/lRbefcsYDi4?t=99

Notice how by using the arrow keys doesn't really select the items, only changes the property window information but doesn't have any effect on the viewport.

[TheSofox]

Taking a look at this now....

[TheSofox]

I have been told "current behavior is fine" and my bug fix pull request that I spent time and effort making has been closed without committing.

[samvila]

Wow, that's a real shame @TheSofox , I think the video on the description shows a common workflows expected from users coming from others engines and their possibly disappointment which I think is a great user case in my opinion.

[Zireael07]

The PR has been reopened and akien said the behavior is not fine.

[Piet-G]

This seems fixed in master.

[akien-mga]

Indeed, this was likely fixed by @Faless' refactor in #16947.

[akien-mga]

Reopening as it appears to be specific to some 3D nodes like Area or RigidBody. Nodes with other gizmos like ReflectionProbe are properly highlighted.

CC @JFonS

[samvila]

On my tests it fails when the structure is a 3D node and the childs are meshinstances. Just for your reference.

[KoBeWi]

This is a bug. When you change nodes using arrows, seems like only the focus changes. There's also selection_changed signal sent and for some nodes, the editor will select the element. The selecting seems to happen only for 2D nodes:

EDIT:
Here are some duplicate issues with potentially more info: #22397 #36291