### 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)

if (a.has(gltf_texcoord_key)) {
					texcoord_second = _decode_accessor_as_vec2(p_state, a[gltf_texcoord_key], true);
					num_channels = 4;
				}
				if (!num_channels) {
					break;
				}
				if (num_channels == 2 || num_channels == 4) {
					cur_custom.resize(vertex_num * num_channels);
					for (int32_t uv_i = 0; uv_i < texcoord_first.size() && uv_i < vertex_num; uv_i++) {
						cur_custom.write[uv_i * num_channels + 0] = texcoord_first[uv_i].x;
						cur_custom.write[uv_i * num_channels + 1] = texcoord_first[uv_i].y;
					}
					
					for (int32_t uv_i = texcoord_first.size(); uv_i < vertex_num; uv_i++) {
						cur_custom.write[uv_i * num_channels + 0] = 0;
						cur_custom.write[uv_i * num_channels + 1] = 0;
					}
				}
				if (num_channels == 4) {
					for (int32_t uv_i = 0; uv_i < texcoord_second.size() && uv_i < vertex_num; uv_i++) {
						
						cur_custom.write[uv_i * num_channels + 2] = texcoord_second[uv_i].x;
						cur_custom.write[uv_i * num_channels + 3] = texcoord_second[uv_i].y;
					}
					
					for (int32_t uv_i = texcoord_second.size(); uv_i < vertex_num; uv_i++) {
						cur_custom.write[uv_i * num_channels + 2] = 0;
						cur_custom.write[uv_i * num_channels + 3] = 0;
					}