[Bug] crash on duplicate identifier in ForEach

[MiaKoring]

2026-02-21T21:33:02+0100 warning SwiftCrossUI: identifier=Hello, test! [SwiftCrossUI] duplicate identifier in ForEach; view state may not act as you would expect
Swift/Array.swift:1350: Fatal error: Index out of range

reproducable by pressing generate 3 times in GreetingGeneratorExample without changing the input

[stackotter]

At least this one should be easily unit testable!