### Godot version

v4.0.beta.custom_build [705273140]

### System information

windows 10

### Issue description

When double-clicking a gltf file in the project, the Importer panel will open, but it will also extract the embedded textures.
This never happened in the previous version I was using (I'm not sure which beta I was using last- maybe 13 or 14).



### Steps to reproduce

open the project, and double-click the gltf file to open the importer, see that it creates an image file when it should stay embedded.


### Minimal reproduction project

[gltf import bug.zip](https://github.com/godotengine/godot/files/10522127/gltf.import.bug.zip)

Array materials;
	for (int32_t i = 0; i < p_state->materials.size(); i++) {
		Dictionary d;
		Ref<Material> material = p_state->materials[i];
		if (material.is_null()) {
			materials.push_back(d);
			continue;
		}
		if (!material->get_name().is_empty()) {
			d["name"] = _gen_unique_name(p_state, material->get_name());
		}
		Ref<BaseMaterial3D> base_material = material;
		if (base_material.is_null()) {
			materials.push_back(d);
			continue;
		}
		Dictionary mr;
		{
			Array arr;
			const Color c = base_material->get_albedo().srgb_to_linear();
			arr.push_back(c.r);
			arr.push_back(c.g);
			arr.push_back(c.b);