In the Xcode 16.2 release notes, it says to avoid a memory leak in Swift 6 you should "Pass -checked-async-objc-bridging=off to the Swift compiler using “Other Swift Flags” in Xcode build settings." https://developer.apple.com/documentation/xcode-release-notes/xcode-16_2-release-notes#Swift
However, when I add this value to OTHER_SWIFT_FLAGS (either in the Xcode build settings interface, or in an .xcconfig file), it yields a build error:
error: Driver threw unknown argument: '-checked-async-objc-bridging' without emitting errors.
Does anybody know if there's a trick to get this working that isn't explained in the release notes?