fix: wrong if condition where rooms get removed from list even when includeLeave == true

CHANGELOG.md

@@ -3,6 +3,10 @@ SPDX-FileCopyrightText: 2019-Present Famedly GmbH
 
 SPDX-License-Identifier: AGPL-3.0-or-later
 -->
+
+## [12.0.1] 2nd September 2026
+- fix: wrong if condition where rooms get removed from list even when includeLeave == true (Christian Kußowski)
+
 ## [12.0.0] 2nd September 2026
 This version changes how left rooms are stored in the client and the archive is loaded.
 When calling `loadArchive()` it no longer caches the archived rooms internally and

lib/src/client.dart

@@ -3070,11 +3070,17 @@ class Client extends MatrixApi {
       final position = membership == Membership.invite ? 0 : rooms.length;
       // Add the new chat to the list
       rooms.insert(position, room);
+    } else if (membership == .invite && found) {
+      rooms[roomIndex].membership = membership;
     }
     // If the membership is "leave" then remove the item and stop here
     else if (membership == Membership.leave) {
-      if (syncFilter.room?.includeLeave == true && !found) {
-        rooms.add(room);
+      if (syncFilter.room?.includeLeave == true) {
+        if (!found) {
+          rooms.add(room);
+        } else {
+          rooms[roomIndex].membership = membership;
+        }
       } else if (found) {
         rooms.removeAt(roomIndex);
       }

pubspec.yaml

@@ -4,7 +4,7 @@
 
 name: matrix
 description: Matrix Dart SDK
-version: 12.0.0
+version: 12.0.1
 homepage: https://famedly.com
 repository: https://github.com/famedly/matrix-dart-sdk.git
 issue_tracker: https://github.com/famedly/matrix-dart-sdk/issues