in native/src/work_asset/construct.rs [160:174]
fn ensure_unique_mesh_keys(&self) -> Result<()> {
let mut seen = HashSet::new();
let mut dups = HashSet::new();
for mesh_key in &self.mesh_keys {
if seen.contains(mesh_key) {
dups.insert(mesh_key);
}
seen.insert(mesh_key);
}
if !dups.is_empty() {
Err(format!("Aii, non-unique meld keys: {:#?}", dups))
} else {
Ok(())
}
}