### 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)

Point2 click = gui.mouse_focus->get_global_transform_with_canvas().affine_inverse().xform(gui.last_mouse_pos);
		for (int i = 0; i < 3; i++) {
			if ((int)mask & (1 << i)) {
				Ref<InputEventMouseButton> mb;
				mb.instantiate();
				
				mb->set_position(click);
				mb->set_button_index(MouseButton(i + 1));
				mb->set_pressed(false);
				mb->set_device(InputEvent::DEVICE_ID_INTERNAL);
				gui.mouse_focus->_call_gui_input(mb);
			}
		}
		gui.mouse_focus = focus_grabber;
		click = gui.mouse_focus->get_global_transform_with_canvas().affine_inverse().xform(gui.last_mouse_pos);
		for (int i = 0; i < 3; i++) {
			if ((int)mask & (1 << i)) {
				Ref<InputEventMouseButton> mb;
				mb.instantiate();
				
				mb->set_position(click);
				mb->set_button_index(MouseButton(i + 1));
				mb->set_pressed(true);
				mb->set_device(InputEvent::DEVICE_ID_INTERNAL);
				MessageQueue::get_singleton()->push_callable(callable_mp(gui.mouse_focus, &Control::_call_gui_input), mb);
			}
		}
	}
}
void Viewport::push_text_input(const String &p_text) {