### Godot version

v4.2.dev.custom_build [c3b0a92c3]

### System information

Debian Linux X11 Xfce

### Issue description

In the following scene tree it is not possible to write anything in `LineEditB`.
![image](https://github.com/godotengine/godot/assets/6299227/ce5f696a-d86a-402f-98f7-6a762f15543e)

I would expect, that it is possible to focus `LineEditB` with a mouse click and write into it.

Regression from #58334

### Steps to reproduce

1. Load and run MRP
2. Mouse Click into the left LineEditB
3. Type Keyboard => No letters appear in the LineEditB

Variant:

1. Load and run MRP
2. Mouse Click into the right LineEditA
3. Mouse Click into the left LineEditB
4. Type Keyboard => Letters appear in LineEditA instead of LineEditB


### Minimal reproduction project

[BugKeyInputRouting.zip](https://github.com/godotengine/godot/files/11994804/BugKeyInputRouting.zip)

if (ABS(dist_y) > limit) {
		return SUB_WINDOW_RESIZE_DISABLED;
	}
	if (dist_x < 0 && dist_y < 0) {
		return SUB_WINDOW_RESIZE_TOP_LEFT;
	}
	if (dist_x == 0 && dist_y < 0) {
		return SUB_WINDOW_RESIZE_TOP;
	}
	if (dist_x > 0 && dist_y < 0) {
		return SUB_WINDOW_RESIZE_TOP_RIGHT;
	}
	if (dist_x < 0 && dist_y == 0) {
		return SUB_WINDOW_RESIZE_LEFT;
	}
	if (dist_x > 0 && dist_y == 0) {
		return SUB_WINDOW_RESIZE_RIGHT;
	}
	if (dist_x < 0 && dist_y > 0) {
		return SUB_WINDOW_RESIZE_BOTTOM_LEFT;
	}
	if (dist_x == 0 && dist_y > 0) {
		return SUB_WINDOW_RESIZE_BOTTOM;
	}
	if (dist_x > 0 && dist_y > 0) {
		return SUB_WINDOW_RESIZE_BOTTOM_RIGHT;
	}
	return SUB_WINDOW_RESIZE_DISABLED;
}
bool Viewport::_sub_windows_forward_input(const Ref<InputEvent> &p_event) {