Fixed unending loading screen

app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt

@@ -254,9 +254,15 @@ class ReaderActivity : AppCompatActivity() {
                 reader_progressbar.max = reader_recyclerview.adapter?.itemCount ?: 0
 
                 if (title == getString(R.string.reader_loading)) {
-                    val reader = (reader_recyclerview.adapter as ReaderAdapter).reader
+                    val reader = Cache(this@ReaderActivity).getReaderOrNull(galleryID)
 
                     if (reader != null) {
+
+                        with (reader_recyclerview.adapter as ReaderAdapter) {
+                            this.reader = reader
+                            notifyDataSetChanged()
+                        }
+
                         title = reader.title
                         menu?.findItem(R.id.reader_menu_page_indicator)?.title = "$currentPage/${reader.galleryInfo.size}"