### 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)

for (int i = 0; i < p_node->get_child_count(); i++) {
		Node *r = _pre_fix_node(p_node->get_child(i), p_root, r_collision_map, r_occluder_arrays, r_node_renames);
		if (!r) {
			i--; 
		}
	}
	String name = p_node->get_name();
	NodePath original_path = p_root->get_path_to(p_node); 
	bool isroot = p_node == p_root;
	if (!isroot && _teststr(name, "noimp")) {
		memdelete(p_node);
		return nullptr;
	}
	if (Object::cast_to<ImporterMeshInstance3D>(p_node)) {
		ImporterMeshInstance3D *mi = Object::cast_to<ImporterMeshInstance3D>(p_node);
		Ref<ImporterMesh> m = mi->get_mesh();
		if (m.is_valid()) {
			for (int i = 0; i < m->get_surface_count(); i++) {
				Ref<BaseMaterial3D> mat = m->get_surface_material(i);
				if (!mat.is_valid()) {
					continue;
				}
				if (_teststr(mat->get_name(), "alpha")) {
					mat->set_transparency(BaseMaterial3D::TRANSPARENCY_ALPHA);
					mat->set_name(_fixstr(mat->get_name(), "alpha"));
				}
				if (_teststr(mat->get_name(), "vcol")) {
					mat->set_flag(BaseMaterial3D::FLAG_ALBEDO_FROM_VERTEX_COLOR, true);
					mat->set_flag(BaseMaterial3D::FLAG_SRGB_VERTEX_COLOR, true);