let contentHeight = ceil(used.height + (textInset.height * 2))

let total = contentHeight + self.verticalPadding * 2

self.model.isOverflowing = total > self.maxHeight

// Defer the overflow state mutation to break the SwiftUI onChange → measuredHeight →

// isOverflowing → re-render → onChange synchronous render loop (fixes #43480).

let overflowing = total > self.maxHeight

DispatchQueue.main.async { [weak self] in

guard let self, self.model.isOverflowing != overflowing else { return }

self.model.isOverflowing = overflowing

}

return max(self.minHeight, min(total, self.maxHeight))

}