### 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)

BIND_ENUM_CONSTANT(DEBUG_DRAW_SHADOW_ATLAS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_DIRECTIONAL_SHADOW_ATLAS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_SCENE_LUMINANCE);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_SSAO);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_SSIL);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_PSSM_SPLITS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_DECAL_ATLAS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_SDFGI);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_SDFGI_PROBES);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_GI_BUFFER);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_DISABLE_LOD);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_CLUSTER_OMNI_LIGHTS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_CLUSTER_SPOT_LIGHTS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_CLUSTER_DECALS);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_CLUSTER_REFLECTION_PROBES);
	BIND_ENUM_CONSTANT(DEBUG_DRAW_OCCLUDERS)
	BIND_ENUM_CONSTANT(DEBUG_DRAW_MOTION_VECTORS)
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_NEAREST);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_LINEAR_WITH_MIPMAPS);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_NEAREST_WITH_MIPMAPS);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_FILTER_MAX);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_DISABLED);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_ENABLED);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_MIRROR);
	BIND_ENUM_CONSTANT(DEFAULT_CANVAS_ITEM_TEXTURE_REPEAT_MAX);
	BIND_ENUM_CONSTANT(SDF_OVERSIZE_100_PERCENT);
	BIND_ENUM_CONSTANT(SDF_OVERSIZE_120_PERCENT);
	BIND_ENUM_CONSTANT(SDF_OVERSIZE_150_PERCENT);
	BIND_ENUM_CONSTANT(SDF_OVERSIZE_200_PERCENT);