Crossfading between two data source

[tymmesyde]

Describe the bug
Using crossfade(), when the data source is changing, it will only crossfade when the image is loading, once it's loaded it will just not transition
Read about useExistingImageAsPlaceholder that could potentially fix this issue, but it seems to behaves the same with or without it
So i'm not sure i'm using it correctly, is there a way to fix this behavior?

To Reproduce

@OptIn(ExperimentalCoilApi::class)
@Composable
private fun Background(
    url: String?,
) {
    val context = LocalContext.current

    Box(
        Modifier
            .fillMaxWidth()
            .height(330.dp),
        contentAlignment = Alignment.TopEnd,
    ) {
        Box(Modifier.fillMaxWidth(0.7f)) {
            AsyncImage(
                modifier = Modifier
                    .fillMaxSize()
                    .startToEndGradientMask(0f, 1f)
                    .bottomToTopGradientMask(0.7f, 1f),
                model = ImageRequest.Builder(context)
                    .data(url)
                    .crossfade(250)
                    .useExistingImageAsPlaceholder(true)
                    .build(),
                contentDescription = null,
                contentScale = ContentScale.Crop,
            )
        }
    }
}

Version
3.5 on Android 14