Compose in message lists only

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -529,6 +529,7 @@ public class FragmentMessages extends FragmentEx {
         loadMessages();
 
         // Compose FAB
+        if (viewType != AdapterMessage.ViewType.THREAD) {
             Bundle args = new Bundle();
             args.putLong("folder", folder);
             args.putLong("thread", thread);
@@ -578,6 +579,7 @@ public class FragmentMessages extends FragmentEx {
                 }
             }.load(this, args);
         }
+    }
 
     @Override
     public void onResume() {