XCTest: data race detected

Sorry about my delay this time @grynspan. async conversations, am I right?

Speaking of async, while before I had the compiler complain with a warning, now the compiler doesn't complain anymore, but the code crashes at runtime like this.

Following your advice here, I tested @crontab's code by marking the property as async and it did fix the crash there.

Perhaps there's maybe more to this than just the interop between Swift and Objective-C?

For context

Xcode: Version 16.2 (16C5032a)

swift-driver version: 1.115.1 Apple Swift version 6.0.3 (swiftlang-6.0.3.1.10 clang-1600.0.30.1)
Target: arm64-apple-macosx15.0