Callback ImageLoader called twice

[wpbloger]

Describe the bug
The first time you call StfalconImageViewer.show(), the method used to load the image is called 2 times, because of this, the image may suddenly disappear / appear again, which is not nice.
This happens only on the first call, if you scroll through the gallery with gestures, then one call occurs as it should be.

To Reproduce
Steps to reproduce the behavior:
I tried running the demo there this error is reproducible as well.
To do this, just open file "com.stfalcon.sample.features.demo.grid.PostersGridDemoActivity" and replace method "loadPosterImage" to the following code:

    private fun loadPosterImage(imageView: ImageView, poster: Poster?) {
        Log.e("TEST", "loadPosterImage - "+poster?.url)
        imageView.apply {
            background = getDrawableCompat(R.drawable.shape_placeholder)
            loadImage(poster?.url)
        }
    }

Then we start the emulator (api 29), go to this window, open the console to display our error, clear it to remove the outputs loaded in the image grid.
We open any image in the grid, and we see on the console that the open image was loaded 2 times, that is, the callback was called twice.