- assign a presenter when there is none

akka-bbb-apps/src/main/scala/org/bigbluebutton/core/apps/UsersApp.scala

@@ -302,7 +302,7 @@ trait UsersApp {
       outGW.send(new MeetingState(mProps.meetingID, mProps.recorded, uvo.userID, meetingModel.getPermissions(), meetingModel.isMeetingMuted()))
 
       // Become presenter if the only moderator		
-      if (usersModel.numModerators == 1) {
+      if ((usersModel.numModerators == 1) || (usersModel.noPresenter())) {
         if (ru.role == Role.MODERATOR) {
           assignNewPresenter(msg.userID, ru.name, msg.userID)
         }

akka-bbb-apps/src/main/scala/org/bigbluebutton/core/apps/UsersModel.scala

@@ -96,6 +96,10 @@ class UsersModel {
     uservos.values find (u => u.role == MODERATOR)
   }
 
+  def noPresenter(): Boolean = {
+    !getCurrentPresenter().isDefined
+  }
+
   def getCurrentPresenter(): Option[UserVO] = {
     uservos.values find (u => u.presenter == true)
   }