### 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)

return Error::FAILED;
	}
	for (Ref<GLTFDocumentExtension> ext : document_extensions) {
		ERR_CONTINUE(ext.is_null());
		err = ext->export_post(p_state);
		ERR_FAIL_COND_V(err != OK, err);
	}
	return OK;
}
Error GLTFDocument::_serialize_gltf_extensions(Ref<GLTFState> p_state) const {
	Vector<String> extensions_used = p_state->extensions_used;
	Vector<String> extensions_required = p_state->extensions_required;
	if (!p_state->lights.is_empty()) {
		extensions_used.push_back("KHR_lights_punctual");
	}
	if (p_state->use_khr_texture_transform) {
		extensions_used.push_back("KHR_texture_transform");
		extensions_required.push_back("KHR_texture_transform");
	}
	if (!extensions_used.is_empty()) {
		extensions_used.sort();
		p_state->json["extensionsUsed"] = extensions_used;
	}
	if (!extensions_required.is_empty()) {
		extensions_required.sort();
		p_state->json["extensionsRequired"] = extensions_required;
	}
	return OK;
}
Error GLTFDocument::_serialize_scenes(Ref<GLTFState> p_state) {