Markwon: Async drawable doesn't show up if it's the only thing in the text view

• Markwon version: 4.2.1-SNAPSHOT + GlidePlugin

Async drawable doesn’t show up if it’s the only thing in the text view.

In the source code of the ReplacementSpan there’s this suspicious javadoc

   /**
     * Returns the width of the span. Extending classes can set the height of the span by updating
     * attributes of {@link android.graphics.Paint.FontMetricsInt}. If the span covers the whole
     * text, and the height is not set,
     * {@link #draw(Canvas, CharSequence, int, int, float, int, int, int, Paint)} will not be
     * called for the span.
     */
     public abstract int getSize(...)

And AsyncDrawable.initWithKnownDimensions(...) is only called if AsyncDrawableSpan.draw(...) of the parent span was called.