Groups Notifications on Double click in the navigation row.

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/CardFeedViewModel.kt

@@ -173,6 +173,7 @@ open class CardFeedViewModel(val dataSource: FeedFilter<Note>) : ViewModel() {
     }
 
     fun clear() {
+        lastAccount = null
         lastNotes = null
     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/NotificationScreen.kt

@@ -30,6 +30,10 @@ fun NotificationScreen(
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
+    if (scrollToTop) {
+        notifFeedViewModel.clear()
+    }
+
     LaunchedEffect(accountViewModel) {
         NotificationFeedFilter.account = account
         notifFeedViewModel.invalidateData()