markwon-core/src/main/java/ru/noties/markwon/image/AsyncDrawableScheduler.java
public static void unschedule(@NonNull TextView view) {
        for (AsyncDrawable drawable : extract(view)) {
            drawable.setCallback2(null);
        }
    }
public static void unschedule(@NonNull TextView view) {
        for (AsyncDrawable drawable : extract(view)) {
            drawable.setCallback2(null);
        }
    }
must be called when text manually changed in TextView