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
{
					StructureHandle image = (StructureHandle) images.next( );
					try
					{
						ElementExportUtil.exportStructure( image,
								(LibraryHandle) destination, false );
					}
					catch ( SemanticException e )
					{
						assert false;
					}
				}
				continue;
			}
			else
				value = propHandle.getElement( ).getStrategy( )
						.getPropertyExceptRomDefault( propHandle.getModule( ),
								propHandle.getElement( ), propDefn );
			Object valueToSet = ModelUtil.copyValue( propHandle.getDefn( ),
					value );
			destination.getElement( ).setProperty( propName, valueToSet );
		}
	}
	/**
	 * Duplicates the extension identifier. The extension identifier must be set
	 * before copy other property values. If the identifier is not set first,
	 * extension property definitions cannot be found. Hence, duplicating
	 * property values cannot be right.
	 * <p>
	 * The extension identifier is: