retain first external group snapshot (#2073)

towns-protocol · Jan 17, 2025 · a7e1f7c · a7e1f7c
1 parent 5847a36
commit a7e1f7c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/core/node/events/stream_viewstate_mls.go b/core/node/events/stream_viewstate_mls.go
@@ -74,7 +74,9 @@ func (r *streamViewImpl) GetMlsGroupState() (*mls_tools.MlsGroupState, error) {
 			case *protocol.MemberPayload_Mls_:
 				switch content.Mls.Content.(type) {
 				case *protocol.MemberPayload_Mls_InitializeGroup_:
-					mlsGroupState.ExternalGroupSnapshot = content.Mls.GetInitializeGroup().ExternalGroupSnapshot
+					if len(mlsGroupState.ExternalGroupSnapshot) == 0 {
+						mlsGroupState.ExternalGroupSnapshot = content.Mls.GetInitializeGroup().ExternalGroupSnapshot
+					}
 				case *protocol.MemberPayload_Mls_ExternalJoin_:
 					mlsGroupState.Commits = append(mlsGroupState.Commits, content.Mls.GetExternalJoin().Commit)
 				case *protocol.MemberPayload_Mls_WelcomeMessage_: