RS in QTI editor if a test is referenced in a course without author

https://e-learning.xyz.com/auth/RepositorySite/0/Favorits/0 ^%^ Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36
 **RedScreen** Index: 0, Size: 0
 <dispatchinfo>
 	<componentinfo>
 		<compname>ffo_main_entries</compname>
 		<compclass>org.olat.core.gui.components.form.flexible.impl.FormWrapperContainer</compclass>	
 		<extendedinfo>n/a</extendedinfo>
 		<event>
 			<class&gt;org.olat.core.gui.components.form.flexible.impl.elements.table.SelectionEvent</class&gt;
 			<command>edit</command>
 			<tostring>com:edit,org.olat.core.gui.components.form.flexible.impl.elements.table.SelectionEvent@2f6e29</tostring>
 		</event>
 	</componentinfo>
 	<controllerinfo>
 		<controllername>org.olat.repository.ui.author.AuthorListController</controllername>
 		<controllername>org.olat.repository.ui.author.OverviewAuthoringController</controllername>
 		<controllername>org.olat.core.commons.fullWebApp.BaseFullWebappController</controllername>
 	</controllerinfo>
 </dispatchinfo>
 	
 	
 >>>stack of 1.cause::org.olat.core.logging.OLATRuntimeException: Index: 0, Size: 0
 -> at org.olat.core.gui.exception.ExceptionWindowController.<init>(ExceptionWindowController.java:116)
    at org.olat.core.gui.exception.MsgFactory.createMessageChiefController(MsgFactory.java:57)
    at org.olat.core.gui.exception.MsgFactory.createMessageChiefController(MsgFactory.java:46)
    at org.olat.core.gui.components.Window.dispatchRequest(Window.java:536)
    at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:234)
    at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
    at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:275)
    at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:192)
    at org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:289)
    at org.olat.core.servlets.OpenOLATServlet.doPost(OpenOLATServlet.java:232)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
>>>stack of 2.cause::java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
-> at java.util.ArrayList.rangeCheck(ArrayList.java:653)
   at java.util.ArrayList.get(ArrayList.java:429)
   at org.olat.ims.qti.editor.QTIEditorMainController.createReferenceesMsg(QTIEditorMainController.java:1260)
   at org.olat.ims.qti.editor.QTIEditorMainController.init(QTIEditorMainController.java:418)
   at org.olat.ims.qti.editor.QTIEditorMainController.<init>(QTIEditorMainController.java:323)
   at org.olat.ims.qti.repository.handlers.QTITestHandler.createEditorController(QTITestHandler.java:180)
   at org.olat.repository.ui.RepositoryEntryRuntimeController.doEdit(RepositoryEntryRuntimeController.java:670)
   at org.olat.repository.ui.RepositoryEntryRuntimeController.activate(RepositoryEntryRuntimeController.java:439)
   at org.olat.core.commons.fullWebApp.BaseFullWebappController.activate(BaseFullWebappController.java:1178)
   at org.olat.NewControllerFactory.launch(NewControllerFactory.java:244)
   at org.olat.NewControllerFactory.launch(NewControllerFactory.java:148)