Swipe to read: wait for db update

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

@@ -3189,10 +3189,8 @@ public class FragmentMessages extends FragmentBase
                     redraw(viewHolder);
                     onSwipeAsk(message, viewHolder);
                 } else if (EntityMessage.SWIPE_ACTION_SEEN.equals(action)) {
-                    message.unseen = (message.unseen == 0 ? message.count : 0);
-                    message.ui_seen = (message.unseen == 0);
                     redraw(viewHolder);
-                    onActionSeenSelection(message.ui_seen, message.id, false);
+                    onActionSeenSelection(!message.ui_seen, message.id, false);
                 } else if (EntityMessage.SWIPE_ACTION_FLAG.equals(action))
                     onActionFlagSelection(!message.ui_flagged, Color.TRANSPARENT, message.id, false);
                 else if (EntityMessage.SWIPE_ACTION_SNOOZE.equals(action))