Conformance of Optional to AccessibilityRotorContent is incorrectly available from iOS 27

Using accessibilityRotor(_:entries:) as described in the documentation works fine on Xcode 26 and iOS 26 whereas it fails to compile on Xcode 27 when at least iOS 26 is selected as the minimum deployment target.

.accessibilityElement(children: .contain)
.accessibilityRotor("VIPs") { // ❗️Conformance of 'Optional<Wrapped>' to 'AccessibilityRotorContent' is only available in iOS 27.0 or newer
    ForEach(messages) { message in
        // If the Message is from a VIP, make a Rotor entry for it.
        if message.isVIP {
            AccessibilityRotorEntry(message.subject, id: message.id)
        }
    }
}

The error states "Conformance of 'Optional<Wrapped>' to 'AccessibilityRotorContent' is only available in iOS 27.0 or newer" which should not be the case as the code was compiling prior to Xcode and iOS 27.

Feedback is FB24587642. It contains a sample project to reproduce the issue.

Using Xcode 27 beta 6 with iOS 26 as minimum deployment target and Swift 6 language mode.