Undefined values in mesh UVs

[spelufo]

The uvs are not being loaded properly. Some are not set, I'm seeing undefined values.

 $ grep vt turn_04_h1.obj | head
vt 0.146651 0.103684
vt 0.146657 0.103619
vt 0.146246 0.103636
vt 0.146662 0.103554
vt 0.146251 0.103571
vt 0.145839 0.103589
vt 0.110130 0.082705
vt 0.110381 0.082274
vt 0.109725 0.082440
vt 0.110632 0.081843

 $ ./dev.sh 
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.10.4 (2024-06-04)
 _/ |\__'_|_|_|\__'_|  |  
|__/                   |

julia> using MeshIO, FileIO

julia> load("turn_04_h1.obj").uv[1:10]
10-element Vector{GeometryBasics.Vec{2, Float32}}:
 [0.146651, 0.103684]
 [0.146657, 0.103619]
 [0.0, 0.0]
 [0.146662, 0.103554]
 [0.146251, 0.103571]
 [0.145839, 0.103589]
 [0.11013, 0.082705]
 [0.110381, 0.082274]
 [0.0, 0.0]
 [0.110632, 0.081843]

julia> load("turn_04_h1.obj").uv[1:10]
10-element Vector{GeometryBasics.Vec{2, Float32}}:
 [0.146651, 0.103684]
 [0.146657, 0.103619]
 [4.0f-45, 6.0f-45]
 [0.146662, 0.103554]
 [0.146251, 0.103571]
 [0.145839, 0.103589]
 [0.11013, 0.082705]
 [0.110381, 0.082274]
 [1.3f-44, 1.4f-44]
 [0.110632, 0.081843]

julia> load("turn_04_h1.obj", uvtype=Vec2f).uv[1:10]
10-element Vector{Vec{2, Float32}}:
 [0.146651, 0.103684]
 [0.146657, 0.103619]
 [-3.2827938f15, 3.3897f-41]
 [0.146662, 0.103554]
 [0.146251, 0.103571]
 [0.145839, 0.103589]
 [0.11013, 0.082705]
 [0.110381, 0.082274]
 [1.3f-44, 1.4f-44]
 [0.110632, 0.081843]