Handle duplicate files. Fixes.

build.gradle

@@ -1,6 +1,6 @@
 ext {
     def abi = project.properties['ABI']
-    VERSION_CODE = 80
+    VERSION_CODE = 81
     VERSION_NAME = "1.7.3"
     SDK_MIN_VERSION = 23
     SDK_TARGET_VERSION = 30

fermata/src/main/java/me/aap/fermata/media/engine/MetadataRetriever.java

@@ -186,6 +186,9 @@ private boolean queryContentProvider(Uri uri, MetaBuilder mb) {
 
 			mb.setImageUri(uri.toString());
 			return true;
+		} catch (Exception ex) {
+			Log.e(ex, "Failed to query content provider: " + uri);
+			return false;
 		}
 	}
 

fermata/src/main/java/me/aap/fermata/media/lib/FileItem.java

@@ -13,6 +13,8 @@
 import static me.aap.fermata.BuildConfig.DEBUG;
 import static me.aap.fermata.util.Utils.isVideoFile;
 import static me.aap.utils.async.Completed.completedNull;
+import static me.aap.utils.security.SecurityUtils.md5;
+import static me.aap.utils.text.TextUtils.appendHexString;
 
 /**
  * @author Andrey Pavlenko
@@ -35,7 +37,14 @@ static FileItem create(String id, BrowsableItem parent, VirtualResource file, De
 			if (i != null) {
 				FileItem f = (FileItem) i;
 				if (DEBUG && !parent.equals(f.getParent())) throw new AssertionError();
-				if (DEBUG && !file.equals(f.getResource())) throw new AssertionError();
+
+				if (!file.equals(f.getResource())) {
+					StringBuilder sb = new StringBuilder(id.length() + 33);
+					sb.append(id).append('_');
+					appendHexString(sb, md5(file.getRid().toString()));
+					return new FileItem(sb.toString(), parent, file, isVideo);
+				}
+
 				return f;
 			} else {
 				return new FileItem(id, parent, file, isVideo);

fermata/src/main/java/me/aap/fermata/ui/view/ControlPanelView.java

@@ -310,6 +310,8 @@ public boolean onSingleTapConfirmed(MotionEvent e) {
 		if (delay == 0) return false;
 
 		MainActivityDelegate a = getActivity();
+		if (a == null) return false;
+
 		View title = ((VideoView) gestureSource).getTitle();
 		View fb = a.getFloatingButton();
 

modules/web/src/main/java/me/aap/fermata/addon/web/FermataWebClient.java

@@ -57,6 +57,7 @@ public boolean shouldOverrideUrlLoading(@NonNull WebView view, @NonNull WebResou
 		if (isYoutubeUri(request.getUrl())) {
 			try {
 				MainActivityDelegate a = MainActivityDelegate.get(view.getContext());
+				if (a == null) return false;
 				YoutubeFragment f = a.showFragment(me.aap.fermata.R.id.youtube_fragment);
 				f.loadUrl(request.getUrl().toString());
 				return true;