BooleanOps panic in Snake::into_ring

[donkeyteethUX]

Backtrace:

thread 'test::reproduce_crash' panicked at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/assembly.rs:397:22:
internal error: entered unreachable code
stack backtrace:
   0: rust_begin_unwind
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
   1: core::panicking::panic_fmt
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
   2: core::panicking::panic
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:127:5
   3: geo::algorithm::bool_ops::assembly::Snake<T>::into_ring
   4: geo::algorithm::bool_ops::assembly::rings_from_snakes
             at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/assembly.rs:314:27
   5: geo::algorithm::bool_ops::assembly::RegionAssembly<T>::finish
             at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/assembly.rs:157:39
   6: <geo::algorithm::bool_ops::spec::BoolOp<T> as geo::algorithm::bool_ops::spec::Spec<T>>::finish
             at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/spec.rs:71:9
   7: geo::algorithm::bool_ops::op::Proc<T,S>::sweep
             at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/op.rs:208:9
   8: <geo_types::geometry::multi_polygon::MultiPolygon<T> as geo::algorithm::bool_ops::BooleanOps>::boolean_op
             at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/mod.rs:94:9
   9: geo::algorithm::bool_ops::BooleanOps::union
             at /Systems/extlib/rust/geo-0.28.0/src/algorithm/bool_ops/mod.rs:33:9
  10: my_lib::test::reproduce_crash
             at ./src/lib.rs:399:9
  11: my_lib::test::reproduce_crash::{{closure}}
             at ./src/lib.rs:364:40
  12: core::ops::function::FnOnce::call_once
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
  13: core::ops::function::FnOnce::call_once
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Reproducible with:

#[test]
fn reproduce_crash() {
    let mutipolygon = MultiPolygon(vec![Polygon::new(
        LineString(vec![
            coord! { x: -842.8114919816321, y: -1593.246948876771 },
            coord! { x: -250.74147790864794, y: -1277.405012942043 },
            coord! { x: -107.7221679586994, y: -1437.4340368172966 },
            coord! { x: 548.266741952783, y: -851.1711267623472 },
            coord! { x: 1324.5108343844536, y: -437.08084844385627 },
            coord! { x: 1223.4931768687463, y: -247.7154757616648 },
            coord! { x: 1411.99111985414, y: -79.25324884855956 },
            coord! { x: 721.4329328584276, y: 693.4350869619186 },
            coord! { x: 383.16901237055976, y: 1327.5368365314368 },
            coord! { x: 228.479378920974, y: 1245.0170801910524 },
            coord! { x: 79.25324884855956, y: 1411.99111985414 },
            coord! { x: -605.2045801730624, y: 800.285292836034 },
            coord! { x: -1784.1533139955259, y: 171.37073609852212 },
            coord! { x: -842.8114919816321, y: -1593.246948876771 },
        ]),
        vec![],
    )]);

    let p = Polygon::new(
        LineString(vec![
            coord! { x: -842.8114919816321, y: -1593.246948876771 },
            coord! { x: -1784.1533139955259, y: 171.37073609852212 },
            coord! { x: 383.16901237055976, y: 1327.5368365314368 },
            coord! { x: 1324.5108343844536, y: -437.08084844385627 },
            coord! { x: -842.8114919816321, y: -1593.246948876771 },
        ]),
        vec![],
    );

    mutipolygon.union(&p.into());
}