Fix markers without explicit icon not showing

import com.mapbox.mapboxsdk.plugins.annotation.Symbol

import com.mapbox.mapboxsdk.plugins.annotation.SymbolOptions

import com.google.android.gms.dynamic.unwrap

import com.google.android.gms.maps.model.BitmapDescriptorFactory

import org.microg.gms.maps.mapbox.AbstractGoogleMap

import org.microg.gms.maps.mapbox.GoogleMapImpl

import org.microg.gms.maps.mapbox.LiteGoogleMapImpl

    internal var visible: Boolean = options.isVisible

    internal var anchor: FloatArray = floatArrayOf(options.anchorU, options.anchorV)

    internal var infoWindowAnchor: FloatArray = floatArrayOf(0.5f, 1f)

    internal var icon: BitmapDescriptorImpl? = options.icon?.remoteObject.unwrap()

    internal var icon: BitmapDescriptorImpl =

        options.icon?.remoteObject.unwrap() ?:

        BitmapDescriptorFactoryImpl.defaultMarker().unwrap<BitmapDescriptorImpl>()!!

    internal var alpha: Float = options.alpha

    internal var title: String? = options.title

    internal var snippet: String? = options.snippet

    override fun getPosition(): LatLng = position

    override fun setIcon(obj: IObjectWrapper?) {

        obj.unwrap<BitmapDescriptorImpl>()?.let { icon ->

            this.icon = icon

        this.icon = obj?.unwrap<BitmapDescriptorImpl>() ?: BitmapDescriptorFactoryImpl.defaultMarker().unwrap()!!

        update()

    }

    }

    override fun setVisible(visible: Boolean) {

        this.visible = visible