I am studying Arkady Ivanov’s Decompose library, but when changing the counter and changing the screen, the counter does not save its value and is reset to zero.

Interface of Component

interface SecondComponent {
    val model: Value<Model>

    fun onIncrementClicked()
    fun onDecrementClicked()
    fun onBackClicked()

    data class Model(
       val count: Int = 0
    )
}

Interface implementation

class DefaultSecondComponent(
    private val componentContext: ComponentContext,
    private val onBack: () -> Unit,
): SecondComponent, ComponentContext by componentContext{
     private val state = MutableValue(Model())
     override val model: Value<Model> = state

     override fun onIncrementClicked() {
         state.update { it.copy(count = it.count + 1)}
     }

     override fun onDecrementClicked() {
        state.update { it.copy(count = it.count - 1) }
     }

     override fun onBackClicked() {
        onBack()
     }
}

Creating navigation via ChildStack

private fun secondComponent(component: ComponentContext): 
    SecondComponent =
         DefaultSecondComponent(
            componentContext = component,
            onBack = navigation::pop
         )

I tried changing the lambda expression to update the variable