Bug 148761 Unable to copy a report item from template to report
Steps: 1. Create a template, add a Text item "t1" or others 2. Create template item using "t1" 3. Double click the template item and we get a report item again. 4. We copy the item, paste to another report file. Expected: the text item can be copied. Actual result: Nothing happened, not copied and no error msg.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ElementDefn.java
triggerDefn.setValidator( validator );
			getTriggerDefnSet( ).add( triggerDefn );
		}
		
		List propList = getProperties( );
		Iterator iter = propList.iterator( );
		while ( iter.hasNext( ) )
		{
			PropertyDefn propDefn = (PropertyDefn) iter.next( );
			mergeTriggerDefnSet( propDefn.getTriggerDefnSet( ) );
		}
		
		int slotCount = getSlotCount( );
		for ( int i = 0; i < slotCount; i++ )
		{
			SlotDefn slotDefn = (SlotDefn) getSlot( i );
			mergeTriggerDefnSet( slotDefn.getTriggerDefnSet( ) );
		}
	}
	/**
	 * Merges the trigger definition set with the given one. The duplicate
	 * trigger and the trigger whose target is not this element definition will
	 * not be merged.
	 * 
	 * @param toMerge
	 *            the trigger definition set to merge
	 */
	private void mergeTriggerDefnSet( SemanticTriggerDefnSet toMerge )
	{
		List triggerDefns = toMerge.getTriggerList( );