Fix updating read marker automatically

Co-authored-by: Benoit Marty <benoitm@matrix.org>

CHANGES.md

@@ -17,6 +17,7 @@ Bugfix 🐛:
  - Fix issue when opening encrypted files (#3186)
  - Fix wording issue (#3242)
  - Fix missing sender information after edits (#3184)
+ - Fix read marker not updating automatically (#3267)
 
 Translations 🗣:
  -

vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailViewModel.kt

@@ -550,7 +550,7 @@ class RoomDetailViewModel @AssistedInject constructor(
     private fun stopTrackingUnreadMessages() {
         if (trackUnreadMessages.getAndSet(false)) {
             mostRecentDisplayedEvent?.root?.eventId?.also {
-                viewModelScope.launch {
+                session.coroutineScope.launch {
                     tryOrNull { room.setReadMarker(it) }
                 }
             }