Fix unintended drop on panic in tuple Bundle get_components()

Author: sapir

crates/bevy_ecs/src/bundle.rs

@@ -109,8 +109,8 @@ macro_rules! tuple_impl {
                 #[allow(non_snake_case)]
                 let ($(mut $name,)*) = self;
                 $(
-                    func((&mut $name as *mut $name).cast::<u8>());
-                    std::mem::forget($name);
+                    let mut value = ::std::mem::ManuallyDrop::new($name);
+                    func((&mut *value as *mut $name).cast::<u8>());
                 )*
             }
         }