infinite loop in intersection_with_local_plane in some cases

[KnstAnt]

I have infinite loop in intersection_with_local_plane in some cases in this block:

parry/src/query/split/split_trimesh.rs

Lines 584 to 600 in 3a41ac2

	'traversal: while let Some(current) = next {
	seen[*current] = true;
	polyline_indices.push([prev as u32, *current as u32]);
	for neighbor in index_adjacencies[*current].iter() {
	if *neighbor != prev && *neighbor != first {
	prev = *current;
	next = Some(neighbor);
	continue 'traversal;
	} else if *neighbor != prev && *neighbor == first {
	// If the next index is same as the first, close the polyline and exit
	polyline_indices.push([*current as u32, first as u32]);
	next = None;
	continue 'traversal;
	}
	}
	}

I think the cheking "if !seen" should be repeated inside the loop:

...
'traversal: while let Some(current) = next {
    if seen[*current] {
        break;
    } 
    seen[*current] = true;
    polyline_indices.push([prev as u32, *current as u32]);
    for neighbor in &index_adjacencies[*current] {
...