In my case I was missing the part in square brackets which captures the old value.
Wrong
.onChange(of: isSubscribed) { newState in
print("debug", isSubscribed, newState) // will print the same value twice
}
Correct
.onChange(of: isSubscribed) { [isSubscribed] newState in
print("debug", isSubscribed, newState) // will print two values - old, then new
}
nmecld
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