Problem with Dimension.Coercible.atLeast(dp: androidx.compose.ui.unit.Dp)

[shiSHARK]

Good bug reports include a layout (and MotionScene if applicable). Bug reports without these or reproduction steps are likely to be closed.

I'm trying to create compose layout that acts like this xml:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@android:color/black">


    <View
        android:id="@+id/preview"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintDimensionRatio="3:4"
        app:layout_constraintTop_toBottomOf="@+id/topBar"
        app:layout_constraintBottom_toTopOf="@id/bottomBar"
        android:background="@android:color/holo_red_dark"
        />

    <View
        android:id="@+id/topBar"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:background="@android:color/holo_blue_bright"
        app:layout_constraintTop_toTopOf="parent"
        />

    <View
        android:id="@+id/placeholder"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@android:color/transparent"
        app:layout_constraintDimensionRatio="3:4"
        app:layout_constraintTop_toBottomOf="@+id/topBar" />

    <View
        android:id="@+id/bottomBar"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@android:color/holo_green_dark"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHeight_min="250dp"
        app:layout_constraintVertical_bias="1"
        app:layout_constraintTop_toBottomOf="@+id/placeholder" />
    

</androidx.constraintlayout.widget.ConstraintLayout>

My Composable is this one:

@Composable
@Preview()
fun ComposeContent() {
    ConstraintLayout(
        modifier = Modifier.fillMaxSize()
    ) {
        val (topBar, bottomBar, placeholder, preview) = createRefs()

        Box(
            modifier = Modifier
                .constrainAs(placeholder) {
                    top.linkTo(topBar.bottom)
                }
                .aspectRatio(3f / 4f)
                .fillMaxWidth()
                .background(Color.Yellow.copy(alpha = 0.5f))
        )

        Box(
            modifier = Modifier
                .constrainAs(preview) {
                    top.linkTo(topBar.bottom)
                    bottom.linkTo(bottomBar.top)
                }
                .aspectRatio(3f / 4f)
                .fillMaxWidth()
                .background(Color.Red.copy(alpha = 0.5f))
        )

        Box(
            modifier = Modifier
                .constrainAs(topBar) {
                    top.linkTo(parent.top)
                }
                .height(48.dp)
                .fillMaxWidth()
                .background(Color.Blue.copy(alpha = 0.5f))
        )

        Box(
            modifier = Modifier
                .constrainAs(bottomBar) {
                    linkTo(placeholder.bottom, parent.bottom, 0.dp, 0.dp, 1f)
                    height = Dimension.preferredWrapContent.atLeast(250.dp)
                }
                .fillMaxWidth()
                .background(Color.Green.copy(alpha = 0.5f))
        ) {
            Box(
                modifier = Modifier
                    .fillMaxHeight()
            )
        }
    }
}

It looks that height = Dimension.preferredWrapContent.atLeast(250.dp) doesn't set the minimal size of the desired composable view.

The idea is that the bottom bar fills all the space that is left. When the space is not enough - topBar and bottomBar overlap equal parts from preview. Placeholder is just a helper view.