Overridden input function not receiving mouse inputs when parent subviewport is unfocused

[MACMAN2003]

Godot version

v4.0.rc1.mono.official [8843d9a]

System information

Windows 10, Vulkan, Nvidia RTX 2080 TI

Issue description

When I override input on a node that is a child of a subviewport that is "unfocused", it doesn't receive mouse inputs, yet still receives keyboard inputs and actions.
A few updates ago it was working as intended and I don't know what happened to make it stop working.

Steps to reproduce

• Make new project
• make a scene with a tabcontainer and two subviewports as its children
• give one of the subviewports a sprite2d and override its _input to make it green when there's mouse input and red when there's keyboard input
• notice that mouse input is not received by the sprite2d when its parent subviewport is unfocused

minimal reproduction project instructions

• middle mouse to drag the camera
• left click to randomly teleport the camera
• WASD to move the camera
• notice that the camera doesn't receive mouse input when its parent subviewport is unfocused

Minimal reproduction project

subviewportinput.zip

[Sauermann]

This was intentionally changed in #58334 in order to fix #28833 and #39666. (Basically unrestricted mouse events in SubViewports led to multiple issues)

If you need these events in unfocused SubViewports, you need to override _input or _unhandled_input of the respective SubViewportContainer and handle event-propagation for mouse events to the SubViewport yourself.
Let me know, if you need an example of how to implement this.

[MACMAN2003]

oh,
well i guess the only thing i can do now is workaround it and cross my fingers that the godot devs will add a setting for subviewportcontainers to allow propagation