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/util/ModelUtil.java
IElementDefn defn = content.getDefn( );
		for ( int i = 0; i < defn.getSlotCount( ); i++ )
		{
			ContainerSlot slot = content.getSlot( i );
			if ( slot != null )
				for ( int pos = 0; pos < slot.getCount( ); pos++ )
					reviseNameSpace( module, slot.getContent( pos ), nameSpace );
		}
	}
	/**
	 * Determines whether there is a child in the given element, which is kind
	 * of the given element definition.
	 * 
	 * @param element
	 *            the element to find
	 * @param defn
	 *            the element definition type
	 * @return true if there is a child in the element whose type is the given
	 *         definition, otherwise false
	 */
	public static boolean containElement( DesignElement element,
			IElementDefn defn )
	{
		if ( element == null || defn == null )
			return false;
		
		int count = element.getDefn( ).getSlotCount( );
		for ( int i = 0; i < count; i++ )
		{
			Iterator iter = element.getSlot( i ).iterator( );