winit example panics on macOS

[johanholmerin]

Describe the bug
The winit example panics on macOS whenever the window is unfocused. I've tried updating winit but get the same error.

Steps To Reproduce
Run cargo run --example winit and then focus another window

Expected behavior
The example not to panic

Screenshots

Platform and Versions (please complete the following information):
OS: macOS Sonoma 14.5
Rustc: 1.79.0

Additional context

thread 'main' panicked at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/objc2-0.4.1/src/runtime/mod.rs:1015:17:
ivar _state not found on class WryWebViewParent
stack backtrace:
   0: rust_begin_unwind
             at /rustc/129f3b9964af4d4a709d1383930ade12dfe7c081/library/std/src/panicking.rs:652:5
   1: core::panicking::panic_fmt
             at /rustc/129f3b9964af4d4a709d1383930ade12dfe7c081/library/core/src/panicking.rs:72:14
   2: objc2::runtime::ivar_offset
             at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/objc2-0.4.1/src/runtime/mod.rs:1015:17
   3: objc2::declare::ivar::IvarType::__offset
             at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/objc2-0.4.1/src/declare/ivar.rs:97:9
   4: objc2::declare::ivar::Ivar<T>::as_inner_ptr
             at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/objc2-0.4.1/src/declare/ivar.rs:218:31
   5: <objc2::declare::ivar::Ivar<T> as core::ops::deref::Deref>::deref
             at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/objc2-0.4.1/src/declare/ivar.rs:271:18
   6: winit::platform_impl::platform::view::WinitView::reset_modifiers
             at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.15/src/platform_impl/macos/view.rs:905:13
   7: winit::platform_impl::platform::window_delegate::WinitWindowDelegate::window_did_resign_key
             at /Users/dev/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.15/src/platform_impl/macos/window_delegate.rs:180:13