RS if morphs service are disabled in glossary

<dispatchinfo>
	<componentinfo>
		<compname>cmd.add</compname>
		<compclass>org.olat.core.gui.components.link.Link</compclass>
		<extendedinfo>n/a</extendedinfo>
		<event>
			<class&gt;org.olat.core.gui.control.Event</class&gt;
			<command>cmd.add</command>
			<tostring>com:cmd.add,org.olat.core.gui.control.Event@34a0b60c</tostring>
		</event>
	</componentinfo>
	<controllerinfo>
		<controllername>org.olat.core.commons.modules.glossary.GlossaryMainController</controllername>
		<controllername>org.olat.core.commons.modules.glossary.GlossaryRuntimeController</controllername>
		<controllername>org.olat.core.commons.fullWebApp.BaseFullWebappController</controllername>
	</controllerinfo>
</dispatchinfo> 
Throwable: java.lang.IndexOutOfBoundsException

message:Index: 2, Size: 2,java.lang.IndexOutOfBoundsException

at java.util.ArrayList.rangeCheck(ArrayList.java:653)
at java.util.ArrayList.get(ArrayList.java:429)
at org.olat.core.gui.components.tabbedpane.TabbedPane.isEnabled(TabbedPane.java:313)
at org.olat.core.gui.components.tabbedpane.TabbedPane.setEnabled(TabbedPane.java:300)
at org.olat.core.commons.modules.glossary.GlossaryItemEditorController.enableDisableTermDependentTabs(GlossaryItemEditorController.java:108)
at org.olat.core.commons.modules.glossary.GlossaryItemEditorController.(GlossaryItemEditorController.java:90)
at org.olat.core.commons.modules.glossary.GlossaryMainController.event(GlossaryMainController.java:201)
at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:202)
at org.olat.core.gui.components.AbstractComponent$1.run(AbstractComponent.java:240)
at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)