FastAdapter: possible bug: duplicate images when scrolling

Details

• [ ] Used library version 3.2.5
• [ ] Used support library version 27.1.1
• [ ] Used gradle build tools version 3.1.3
• [ ] Used tooling / Android Studio version 3.1.3

About this issue

i am not sure if this is a bug in the library or somewhere else or if im somehow missing something… the issue is that some views do not seem to be binded/unbinded properly and i am getting duplicate images. here is an example:

as you can see, “Madam Secretary” and “Nashville” have the same image. this seems to be happening at random - if i scroll up and down a few times, this would happen to different items.

things to note (in case they matter):

• i am using kotlin
• i am using ModelAdapter
• the adapter is filtered while this is happening

here are my bindView and unbindView:

override fun bindView(holder: ViewHolder, payloads: MutableList<Any>)
    {
        super.bindView(holder, payloads)

        val view = holder.view
        val context = view.context

        Picasso.with(context)
            .load(model._imageUrl)
            .placeholder(R.drawable.image_loading)
            .error(R.drawable.image_error)
            .fit()
            .centerInside()
            .into(view.iv_showImage)

        (view as FrameLayout).foreground =
                FastAdapterUIUtils.getSelectablePressedBackground(context,
                                                                  context.resources.getColor(R.color.colorPrimaryTransparent),
                                                                  255,
                                                                  true)
        val nameAndYear = "${model._name}\n(${model._year})"
        view.tv_nameAndYear.text = nameAndYear

        if (model.isRunning())
            view.tv_status.visibility = View.GONE
        else
            view.tv_status.apply {
                visibility = View.VISIBLE
                setText(R.string.showEnded)
            }
    }

override fun unbindView(holder: ViewHolder)
    {
        super.unbindView(holder)

        holder.view.apply {
            tv_status.text = ""
            tv_nameAndYear.text = ""
            iv_showImage.setImageDrawable(null)
        }
    }

Things i have tried (inside unbindView method)

i found a few suggested solutions on StackOverflow but none of them work for me

• imageView.setImageDrawable(null)
• imageView.setImageBitmap(null)
• imageView.setImageResource(0)
• imageView.setImageResource(android.R.color.transparent)

up until today imageView.setImageDrawable(null) has been working just fine but not anymore for some reason… is my code wrong somehow? is anybody else experiencing this issue?